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Multi-interface cooperative high-throughput multi-channel MAC protocol

A multi-interface, multi-channel technology, applied in wireless network protocols, wireless communications, network traffic/resource management, etc., can solve problems such as hidden terminals, and achieve the effect of improving handshake efficiency

Inactive Publication Date: 2018-11-13
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the traditional single-interface single-channel protocol is applied to a multi-channel network, there will be problems such as hidden terminals

Method used

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  • Multi-interface cooperative high-throughput multi-channel MAC protocol
  • Multi-interface cooperative high-throughput multi-channel MAC protocol
  • Multi-interface cooperative high-throughput multi-channel MAC protocol

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Experimental program
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Embodiment Construction

[0033] The specific steps of the technical scheme of the present invention are:

[0034] Step 1, such as figure 1 As shown, a multi-interface and multi-channel wireless Ad hoc network model is established, in which nodes A, B, C, D, E, and F have 3 interfaces. The number of channels in the entire network is 12, divided into 4 groups, among which (1, 2, 3) is the default channel group, and the other groups are data channel groups.

[0035] Step 2, such as figure 2 As shown, a multi-channel MAC protocol communication model based on multi-interface cooperation is established to realize channel competition and data exchange of multi-interface nodes. The node interfaces are Nic1, Nic2 and Nic3 respectively. The working mode of the node interface includes the following steps:

[0036] 1) All nodes Nic1, Nic2 and Nic3 in the network switch to the pre-allocated default channel (1, 2, 3) according to the channel protocol rules, and start the backoff timer to start competing for the channel; ...

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Abstract

The invention proposes a multi-interface cooperative high-throughput multi-channel MAC protocol. Firstly, a virtual MAC layer is added to a multi-interface node model, a new handshake mechanism and amulti-channel allocation method are designed in the MAC layer, and the synchronous transmission relationship between all interfaces between source-target node is established by using successful handshake information of a single interface so as to improve the throughput and the control frame efficiency.

Description

Technical field [0001] The present invention mainly relates to the field of wireless communication, and particularly relates to the MAC protocol of the Ad-Hoc self-organizing network. Background technique [0002] The link capacity of single-interface single-channel communication has been difficult to meet the high throughput requirements of multimedia devices in wireless Ad-Hoc networks, such as the IEEE 802.11 protocol. The use of multi-interface and multi-channel (MIMC) communication can greatly increase throughput and improve delay performance, and is the main technical means for current wireless Ad-Hoc networks to increase throughput. When the traditional single-interface single-channel protocol is applied to a multi-channel network, problems such as hidden terminals will occur. [0003] The hidden terminal problem of multi-interface and multi-channel networks can be effectively solved by adding a synchronization mechanism. In multi-interface communication, the efficiency of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04W84/18
CPCH04L69/03H04W28/08H04W80/00H04W84/18
Inventor 邓清勇秦井霞裴延睿邓亚风李哲涛曹家盛
Owner XIANGTAN UNIV