CN106658731B - Resource scheduling method of wireless MESH network - Google Patents
Resource scheduling method of wireless MESH network Download PDFInfo
- Publication number
- CN106658731B CN106658731B CN201611183691.9A CN201611183691A CN106658731B CN 106658731 B CN106658731 B CN 106658731B CN 201611183691 A CN201611183691 A CN 201611183691A CN 106658731 B CN106658731 B CN 106658731B
- Authority
- CN
- China
- Prior art keywords
- node
- network access
- network
- time slot
- address number
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Abstract
The invention discloses a resource scheduling method of a wireless MESH network, which mainly solves the problem that a node in the prior art cannot occupy a time slot quickly and stably. The technical scheme is as follows: 1) changing a basic frame structure of an IEEE802.16mesh network MAC layer to obtain a new frame structure, and obtaining address numbers of all nodes from time slot numbers in the new frame structure; 2) the network access node randomly allocates an address number for the network access node, and selects an initial support node to access the network to obtain the address number of the network access node; 3) the network access node schedules the network configuration time slot and the user equipment time slot on the basis of the allocated address number so as to avoid conflict with other nodes; 4) and the network access node optimizes the address number scheduling according to the service data volume of the network access node so as to realize the occupation of the time slot UE without the main user equipment. The invention can quickly and stably occupy the time slot and can be used for data transmission of the wireless MESH network.
Description
Technical Field
The invention belongs to the technical field of communication, and further relates to a resource scheduling method which can be used for a wireless MESH network and ensures the transmission of a large amount of service data.
Background
The Mesh topology network is a network adopting a multipoint-to-multipoint topology structure, and the IEEE802.16 protocol defines two scheduling modes of the Mesh topology network: centralized scheduling and distributed scheduling.
The centralized scheduling is too dependent on the root node of the Mesh network BS, and after the base station fails, the whole network falls into a paralyzed state, so the centralized scheduling is less used.
Distributed scheduling can be further divided into coordinated distributed scheduling and non-coordinated distributed scheduling. The scheduling message of the uncoordinated distributed scheduling is only used for establishing requests and responses between nodes needing to send data, does not need to negotiate with other nodes, and is generally used in fast scheduling with strict time requirements. The scheduling message of the cooperative distributed scheduling needs to be broadcast to the neighboring nodes, and needs to negotiate with the whole network to obtain a sending time, so as to ensure that no sending collision occurs between the scheduling message and other nodes. Although the cooperative distributed scheduling can realize dynamic reservation of the sending time slot, the conflict generated by competition is effectively avoided. However, in the sea level communication environment, under the condition that the number of nodes is not too many and the communication channel is relatively stable, the MAC layer mainly has the task of transmitting a large amount of service data and needs to quickly and stably occupy time slot resources, if the ieee802.16mesh network MAC layer cooperative distributed scheduling algorithm is used, a frame structure needs to have a fixed time slot of a scheduling control subframe, and a message broadcasted in the scheduling control subframe needs to include scheduling information of a next transmission time slot of the scheduling control message and scheduling information of occupied data subframe time slots, and meanwhile, the influence of an operation amount brought by the scheduling algorithm is also included.
Disclosure of Invention
The present invention aims to provide a resource scheduling method for a wireless MESH network, aiming at the defects of the prior art, so as to realize that a node occupies a time slot resource quickly and stably and ensure the normal transmission of management messages and service data of the node.
The technical idea of the invention is that the occupation of the time slot by the node is directly based on the address number obtained by the node allocation by improving the basic frame structure. The implementation scheme comprises the following steps:
(1) optimizing the IEEE802.16mesh frame structure:
changing the frequency and position of time slots in a Mesh network frame structure of IEEE802.16 standard, and removing a scheduling subframe part of a control subframe, so that one frame in the changed frame structure only comprises one network control subframe Cn and M1 data subframes D, wherein the network control subframe Cn comprises one network access time slot NENT and M2 network configuration time slots NCFG, the data subframe D comprises M2 user equipment time slots UE, wherein 1< M1, and 1< M2< 255;
(2) the network access Node respectively selects an initial support Node to obtain an address number Node ID according to the following two conditions:
for the condition that a network has a preset initial support Node, the network access Node waits for and searches for a network configuration message sent by the initial support Node after starting up, sends a network access request to the network access Node and obtains an address number Node ID;
for the condition that no preset initial support Node exists in the network, obtaining the initial support Node according to the size of the address number of the comparison network access Node and the adjacent Node, and sending a network access request to the network access Node and obtaining the address number Node ID by the network access Node;
(3) the network access Node adopts the scheduling based on the address number Node ID:
(3a) for a network access time slot NENT, all new nodes which attempt to join the MESH network send messages in the time slot and occupy the time slot in a competition mode;
(3b) for M2 network configuration time slots NCFG, the network access Node occupies according to the value of the address number Node ID, and sends the network configuration message of itself when the network configuration time slot NCFG corresponding to the value of the Node address number Node ID comes;
(3c) for M1 data subframes, each data subframe has M2 user equipment time slots UE, the network access Node occupies according to the value of the address number Node ID, and sends own data when the user equipment time slot UE corresponding to the value of the address number Node ID of the Node arrives;
(4) optimizing the data subframe time slot scheduling:
(4a1) defining a user equipment time slot UE occupied by a node existing in a network as a master user equipment time slot UE; defining the user equipment time slot UE corresponding to the address number Node ID which is not allocated to the Node as the time slot UE without the main user equipment;
(4a2) occupying a time slot UE without a main user equipment: the network access node initiates an occupation statement of the time slot UE of the non-master user equipment according to the service data flow of the network access node and the cognition of all the time slots UE of the non-master user equipment in the Mesh network; all the one-hop neighbor nodes of the network access node send messages to the network access node so as to respond to the occupation statement; and finally, the network access node sends a confirmation message.
Compared with the prior art, the invention has the following advantages:
first, the present invention changes the ieee802.16mesh frame structure, so that more time slots are used for transmitting service data, thereby reducing the interaction of management messages between nodes and avoiding the complex operation amount of the scheduling algorithm.
Secondly, the invention adopts the scheduling method based on the address number Node ID, thereby overcoming the problem of resource competition situation of users in the prior art and leading the invention to have the advantage of reducing the Node time delay.
Thirdly, because the invention optimizes the Node ID scheduling based on the address number, the invention has the advantages of dynamically distributing resources according to different traffic demands and realizing the effect of quickly and stably occupying time slots.
Drawings
FIG. 1 is a flow chart of an implementation of the present invention;
FIG. 2 is a frame structure diagram in the present invention;
FIG. 3 is a diagram of a control subframe structure in the present invention;
FIG. 4 is a diagram of a data subframe structure in the present invention;
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, the implementation steps of the invention are as follows:
step 1, improving the frame structure of the MAC layer of the IEEE802.16mesh network.
In the ieee802.16mesh topology network, the frame structure of the MAC layer adopts a TDD mode. In the time domain, one frame is divided into two parts, a control subframe and a data subframe. The control sub-frame is divided into a network control sub-frame and a scheduling control sub-frame, wherein the network control sub-frame comprises a network access time slot and a network configuration time slot. By using the basic scheduling algorithm of the MAC layer of the ieee802.16mesh network, a fixed time slot of the scheduling control subframe is required in the frame structure, meanwhile, the message broadcasted in the network control subframe needs to include the scheduling information of the next transmission time slot of the network control message, the message broadcasted in the scheduling control subframe needs to include the scheduling information of the next transmission time slot of the scheduling control message and the scheduling information of the occupied data subframe time slot, and meanwhile, the system is affected by the computation amount caused by the scheduling algorithm, so that the fast and stable occupation of time slot resources by each node cannot be realized, and the transmission time slots of the management message of the node and the service data cannot be guaranteed, so that the frame structure needs to be improved and corresponding scheduling needs to be proposed.
The invention improves the Mesh network frame structure of IEEE802.16 standard by changing the frequency and position of time slot, removing the scheduling control sub-frame, and when the node needs to send the resource scheduling control message, the resource scheduling control message is sent on the basic rate sub-packet in the data sub-frame.
Referring to fig. 2, a modified frame structure of the present invention includes only one control subframe and M1 data subframes of which 1< M1.
Referring to fig. 3, one control subframe, namely a Cn subframe, in the frame structure is removed from the scheduling control subframe in the original control subframe, and only the network control subframe is reserved. The network control subframe comprises two types of slots, respectively network access slots NENT and M2 network configuration slots NCFG, 1< M2<255, wherein:
the network access time slot NENT refers to the time slot of all new nodes which attempt to join the Mesh network and send messages;
the M2 network configuration time slots NCFG refer to time slots for information interactive transmission between adjacent nodes;
referring to fig. 4, each data subframe of the frame structure of the present invention comprises M2 user equipment slots UE, the user equipment slots UE comprises three parts of a data burst preamble sequence, a data burst payload and a data transmission guard, wherein:
a data burst payload comprising both a base rate sub-packet and a variable rate sub-packet, the base rate sub-packet in turn comprising two parts: the first part is used for indicating the coding and modulation mode of a variable-rate sub-packet in the time slot UE of the user equipment, and the second part is the load of a basic-rate sub-packet, wherein the load part of the basic-rate sub-packet is used for bearing scheduling information and a short data message, and the example uses an ACK message of service data as the short data message; the variable rate sub-packet is mainly used to carry traffic data to be transmitted by the upper layers of the node.
And 2, selecting the initial support Node to access the network to obtain the address number Node ID.
2a) After starting up, the network access Node randomly allocates an address number Node ID for the network access Node, sends a network configuration message in a network configuration time slot NCFG corresponding to the address number Node ID, and continuously monitors network configuration messages from other nodes at other time, wherein the address number Node ID refers to the number from 1 to M2 of M2 network configuration time slots NCFG of a control subframe and M2 user equipment time slots UE of a data subframe, and each Node newly accessed to the network can be allocated to obtain a unique address number Node ID which is equivalent to an IP address of the Internet;
2b) when the network access node monitors that a plurality of nodes appear in the same adjacent node domain, one node is selected from the plurality of nodes as an initial supporting node, and other nodes initiate network access requests to the node, wherein the selection is divided into the following two cases:
the first method is as follows: for the condition that a network has a preset initial support Node, the network access Node waits for and searches for a network configuration message sent by the initial support Node after starting up, and accesses the network and obtains an address number Node ID after receiving the message;
the second method is as follows: for the condition that no preset initial support node exists in the network, after the network access node receives the network configuration message of other nodes, the network access node firstly judges whether the opposite node is an on-network node:
if yes, initiating a network access application to the opposite side;
if not, comparing the address number Node ID of the self and the address number Node ID of the other side, selecting the Node with the small address number Node ID as the initial support Node, initiating a network access application to the initial support Node by other nodes and obtaining the address number Node ID, and if the address number Node IDs of the two sides are the same, comparing again after changing the address number Node ID of the self in the next frame period.
The initial support node is a node used as a root node for establishing the wireless MESH network.
And 3, the network access Node adopts the scheduling based on the address number Node ID.
Based on the frame structure and the address number Node ID distributed after the nodes access the network, the invention schedules the messages and data according to the following modes:
3a) for a network access time slot NENT, all new nodes which attempt to join the Mesh network send network access messages in the time slot, and the occupation of the time slot is competitive, namely when the network access time slot NENT arrives, a plurality of network access nodes simultaneously apply for network access, all the network access nodes randomly avoid a plurality of frame periods and reapply for network access, and only one network access node applies for network access until the network access time slot NENT arrives, and the network access time slot NENT is allocated to the network access node;
3b) for the network configuration time slot NCFG, a scheduling mode based on the address number Node ID is adopted, and a network configuration message is sent in a transmission time slot corresponding to the address number Node ID acquired by the network Node occupation, wherein the network configuration time slot NCFG is exclusively occupied at the network Node, and other nodes of the allocated network configuration time slot NCFG cannot be occupied so as to ensure that nodes in the network cannot conflict;
3c) for the user equipment time slot UE of the data subframe, the network access Node occupies according to the value of the address number Node ID, and sends own data when the user equipment time slot UE corresponding to the value of the address number Node ID of the Node arrives.
Referring to fig. 2, it is assumed that there are 21 nodes in the network, i.e. M2 is 21, the 21 nodes in the network correspond to 21 UE slots in the data subframe, each Node occupies one slot, and the number of occupied slots corresponds to the address number Node ID allocated to each Node, for example, when the UE slot with number 2 arrives, the Node with address number Node ID value 2 can send the service data, as shown in table 1.
TABLE 1 user Equipment time Slot UE occupancy based on Address number Node ID scheduling
In table 1, a Node with an address number Node ID of 2 sends 8 frames of data less than or equal to a variable rate sub-packet per frame period, where the number of the squad frame squad is always 8, which means that the Node does not need to occupy other user equipment slots UE, then the Node occupies user equipment slots UE with numbers 10, 11, 12, and 13 in the frame with the number 2, and the Node occupies user equipment slots UE with numbers 1, 2, 3, and 4 in the frame with the number 3, which shows that the Node sends data according to the user equipment slots UE corresponding to the address number Node ID when there is no large amount of data sent.
And 4, optimizing the data subframe time slot scheduling.
The scheduling in step 3 is only suitable for the situations that the number of network nodes is small and a large amount of service data does not need to be sent at the network nodes, when the nodes need to send a large amount of service data and the user equipment time slot UE occupied at the network nodes cannot complete data transmission, the user equipment time slot UE not occupied by the nodes can be applied, if the application is successful, the user equipment time slot UE can send own service data, that is, the data subframe time slot scheduling is optimized as follows:
(4a) defining time slot UE with main user equipment and time slot UE without main user equipment:
defining a user equipment time slot UE occupied by a node existing in a network as a master user equipment time slot UE;
defining the user equipment time slot UE corresponding to the address number Node ID which is not allocated to the Node as the time slot UE without the main user equipment;
(4b) and carrying out occupation statement on the time slot UE without the main user equipment:
the first step is as follows: the network access node initiates an occupation statement of the time slot UE without the main user equipment according to the service data flow of the network access node and the prior cognition of all the time slots UE without the main user equipment in the Mesh network, and the statement is carried by adopting a scheduling control message;
the second step is that: all the one-hop neighbor nodes of the network access node respond to the network access node with occupation statements, that is, whether the occupation statement of a certain time slot UE without the primary user equipment is accepted or not is determined by one-hop neighbor node, and the acceptance or rejection of the one-hop neighbor node is comprehensively determined according to the occupation statements of all the one-hop neighbor nodes received by the one-hop neighbor node:
for the mutually conflicting occupation declarations, the adjacent Node arbitrates according to the priority of the declaration Node, namely, the declaration Node with the small address number Node ID has higher priority and preferentially obtains response;
for the occupation statements with the same priority, a random function is adopted to respond;
the third step: and the network access node sends a scheduling control confirmation message.
The optimization of step 4 above can be further illustrated by table 2:
TABLE 2 optimized scheduling of user equipment time slot UE occupancy based on address number Node ID
In table 2, a Node with an address number of Node ID 2 sends 16 frames of data larger than a variable rate sub-packet in each frame period, and the number of the team frame number and the team frame number are always increased, which indicates that the Node cannot complete sending of data in the allocated UE slot UE and needs to occupy other UEs without a master UE slot, the Node occupies the UE slot UE with number 2 of the data sub-frame with numbers of 10, 11, 12, and 13 in the frame with number 2 and applies for occupation of the UE slot UE without master UE with number 20, and the Node occupies the UE slots UE with numbers 2 and 20 of the data sub-frame with numbers of 1, 2, 3, and 4 in the frame with number 3, which shows that the Node occupies the UE slot UE without master UE in case of sending a large amount of data.
While the invention has been described with reference to a specific embodiment thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (5)
1. A resource scheduling method of a wireless MESH network comprises the following steps:
(1) the structure of the IEEE802.16Mesh frame is optimized:
changing the frequency and position of time slots in a Mesh network frame structure of IEEE802.16 standard, and removing a scheduling subframe part of a control subframe, so that a superframe in the changed frame structure only comprises a network control subframe Cn and M1 data subframes D, wherein the network control subframe Cn comprises a network access time slot NENT and M2 network configuration time slots NCFG, the data subframe D comprises M2 user equipment time slots UE, and 1< M1, and 1< M2< 255;
(2) the network access Node respectively selects an initial support Node to obtain an address number Node ID according to the following two conditions, wherein the initial support Node is a Node used as a root Node for establishing the wireless MESH network:
for the condition that a network has a preset initial support Node, the network access Node waits for and searches for a network configuration message sent by the initial support Node after starting up, sends a network access request to the network access Node and obtains an address number Node ID;
for the condition that no preset initial support Node exists in the network, obtaining the initial support Node according to the size of the address number of the comparison network access Node and the adjacent Node, and sending a network access request to the network access Node and obtaining the address number Node ID by the network access Node; after the network access node receives the network configuration message of other nodes, the network access node firstly judges whether the opposite node is an on-network node:
if yes, initiating a network access application to the opposite side;
if not, comparing the address number Node IDs of the Node and the other party, selecting the Node with the small address number Node ID as an initial support Node, initiating a network access application to the initial support Node by other nodes and obtaining the address number Node ID, and if the address number Node IDs of the two parties are the same, comparing again after changing the address number Node ID of the Node after waiting for the next frame period;
(3) the network access Node adopts the scheduling based on the address number Node ID:
(3a) for a network access time slot NENT, all new nodes which attempt to join the MESH network send messages in the time slot and occupy the time slot in a competition mode;
(3b) for M2 network configuration time slots NCFG, the network access Node occupies according to the value of the address number Node ID, and sends the network configuration message of itself when the network configuration time slot NCFG corresponding to the value of the Node address number Node ID comes;
(3c) for M1 data subframes, each data subframe has M2 user equipment time slots UE, the network access Node occupies according to the value of the address number Node ID, and sends own data when the user equipment time slot UE corresponding to the value of the address number Node ID of the Node arrives;
(4) optimizing the data subframe time slot scheduling:
(4a) defining a user equipment time slot UE occupied by a node existing in a network as a master user equipment time slot UE; defining the user equipment time slot UE corresponding to the address number Node ID which is not allocated to the Node as the time slot UE without the main user equipment;
(4b) occupying a time slot UE without a main user equipment: the network access node initiates an occupation statement of the time slot UE of the non-master user equipment according to the service data flow of the network access node and the cognition of all the time slots UE of the non-master user equipment in the Mesh network; all the one-hop neighbor nodes of the network access node send messages to the network access node so as to respond to the occupation statement; and finally, the network access node sends a confirmation message.
2. The method according to claim 1, wherein the address number Node ID in step (2) refers to the number from 1 to M2 for M2 network configuration time slots NCFG of the control sub-frame and M2 user equipment time slots UE of the data sub-frame, and each Node newly accessing the network is assigned its own unique address number Node ID.
3. The method of claim 1, wherein the step (3a) of occupying the network access time slot NENT by contention means that when a plurality of network access nodes simultaneously request for network access when the network access time slot NENT arrives, all network access nodes randomly avoid several frame periods and re-request for network access until only one network access node requests for network access when the network access time slot NENT arrives, and the network access time slot NENT is allocated to the network access node.
4. The method according to claim 1, wherein the network access Node in step (3b) is occupied according to the value of its address number Node ID, which means that each network access Node occupies a network configuration time slot NCFG, and the number of occupied time slot is the same as the value of the address number Node ID allocated by the Node.
5. The method according to claim 1, wherein the network access Node in step (3c) performs occupation according to the value of its address number Node ID, which means that each Node occupies a UE time slot, and the number of the occupied time slot is the same as the value of the address number Node ID allocated to the Node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183691.9A CN106658731B (en) | 2016-12-20 | 2016-12-20 | Resource scheduling method of wireless MESH network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183691.9A CN106658731B (en) | 2016-12-20 | 2016-12-20 | Resource scheduling method of wireless MESH network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106658731A CN106658731A (en) | 2017-05-10 |
| CN106658731B true CN106658731B (en) | 2019-12-24 |
Family
ID=58833426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611183691.9A Active CN106658731B (en) | 2016-12-20 | 2016-12-20 | Resource scheduling method of wireless MESH network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106658731B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872872A (en) * | 2017-10-13 | 2018-04-03 | 西安电子科技大学 | A kind of networking synchronous method of Wireless MESH network |
| CN107959977B (en) * | 2017-10-20 | 2019-10-25 | 西安电子科技大学 | Wireless Mesh netword resource regulating method based on painting theory |
| CN109936867A (en) * | 2017-12-19 | 2019-06-25 | 英华达（上海）科技有限公司 | A kind of localization method and positioning system |
| CN111132325B (en) * | 2018-11-01 | 2023-08-04 | 北京小米松果电子有限公司 | Networking method based on subframe scheduling, storage medium, ad hoc network and nodes thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610594A (en) * | 2009-07-24 | 2009-12-23 | 西安电子科技大学 | Dynamic layered PMP/Mesh hybrid network system and superframe structure thereof based on TD-OFDMA |
| CN105050186A (en) * | 2015-06-23 | 2015-11-11 | 闽南师范大学 | Broadband wireless ad hoc network MAC-layer protocol method based on TDMA |
| CN105554887A (en) * | 2015-12-09 | 2016-05-04 | 电子科技大学 | Wireless MESH network distributed resource distribution method based on TDMA |
| CN105813165A (en) * | 2016-03-03 | 2016-07-27 | 北京交通大学 | Wireless Mesh network applied MAC layer distributed type scheduling mechanism |
-
2016
- 2016-12-20 CN CN201611183691.9A patent/CN106658731B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610594A (en) * | 2009-07-24 | 2009-12-23 | 西安电子科技大学 | Dynamic layered PMP/Mesh hybrid network system and superframe structure thereof based on TD-OFDMA |
| CN105050186A (en) * | 2015-06-23 | 2015-11-11 | 闽南师范大学 | Broadband wireless ad hoc network MAC-layer protocol method based on TDMA |
| CN105554887A (en) * | 2015-12-09 | 2016-05-04 | 电子科技大学 | Wireless MESH network distributed resource distribution method based on TDMA |
| CN105813165A (en) * | 2016-03-03 | 2016-07-27 | 北京交通大学 | Wireless Mesh network applied MAC layer distributed type scheduling mechanism |
Non-Patent Citations (2)
| Title |
|---|
| A Dynamic Frame Partitioning Scheme for IEEE 802.16 Mesh Networks;Zhengbao Liu等;《IEEE》;20110805;第1047-1050页 * |
| Distributed Fast Beacon Scheduling for Mesh Networks;Woon-yong Lee等;《IEEE》;20111231;第727-732页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106658731A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10039119B2 (en) | Devices and methods for D2D transmission | |
| WO2019201165A1 (en) | Method for allocating sidelink resource, device, and system | |
| KR102087656B1 (en) | Method and apparatus for distributed scheduling of resources in a device to divice communication system | |
| AU2007270867B2 (en) | QoS request and information distribution for wireless relay networks | |
| CN106658731B (en) | Resource scheduling method of wireless MESH network | |
| TWI405426B (en) | Communications systems | |
| CN102612152B (en) | Ad Hoc network MAC (Media Access Control) protocol realizing method based on STDMA (Self Organizing Time Division Multiple Access) | |
| CN107949062B (en) | Dynamic allocation method for time slot resources of broadband ad hoc network based on multi-level frame structure | |
| EP3128706B1 (en) | Resource reuse method and apparatus | |
| JP2008099282A (en) | Wireless communication systems | |
| KR20140027531A (en) | One method of delegate-based group channel access | |
| JP2009246955A (en) | Timeslot sharing protocol for wireless communication networks | |
| CN106165513B (en) | For providing the method and apparatus of multi-client access | |
| JP2017513430A (en) | Communication device and method | |
| CN101282575A (en) | Random access method and system | |
| CN105704821A (en) | Channel mapping based MAC protocol of multi-channel distribution method | |
| Ray et al. | Supporting bursty traffic in wireless sensor networks through a distributed advertisement-based TDMA protocol (ATMA) | |
| US20130267236A1 (en) | Smallcell base station and channel assignment method for the same | |
| EP2932660A1 (en) | Systems and methods to achieve fairness in wireless lans for cellular offloading | |
| CN114448549B (en) | Ad hoc network dynamic TDMA control time slot allocation method based on neighbor node information | |
| WO2014036964A1 (en) | Method and apparatus for processing multi-timeslot or multi-subframe resources | |
| CN107888325B (en) | Point-to-multipoint star ad hoc network and frame scheduling method thereof | |
| US7924869B2 (en) | Time-division-based channel collision collaboration in a dynamic frequency hopping wireless regional area network (WRAN) | |
| WO2018107370A1 (en) | Point to multi-point channel allocation method, apparatus, and system | |
| WO2015168908A1 (en) | Resource scheduling method, device and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |