A mixed topology control method based on AODV protocol

A topology control and hybrid technology, applied in the direction of digital transmission system, electrical components, transmission system, etc., can solve the problems of node energy limitation, node interference mobility, etc., and achieve the effect of improving performance

Inactive Publication Date: 2011-08-17
BEIJING JIAOTONG UNIV
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Problems solved by technology

[0004] The present invention proposes a hybrid topology control method combined with the AODV protocol to solve the shortcomings of the two topology control methods in the prior art, and mainly solves Adhoc network scale, limited node energy, serious interference between nodes and mobility The purpose is to provide network scalability, adaptability and autonomy through a hybrid method, so that the final network topology can achieve strong connectivity and optimize network performance. It is mainly suitable for wireless sensor networks and military formation communication applications.

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  • A mixed topology control method based on AODV protocol
  • A mixed topology control method based on AODV protocol
  • A mixed topology control method based on AODV protocol

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[0029] figure 1 Among them, the present invention mainly includes four program function modules: an area division module, an intra-area topology control module, an inter-area topology control module and an improved AODV routing protocol module. The improved AODV routing protocol module is an important part of the present invention, and is also the core part of the intra-area topology control module and the inter-area topology control module.

[0030] 1. Area division module

[0031] This module is mainly designed for large-scale Ad hoc networks. When the network scale is large, only using the centralized topology control method will cause a large network overhead and reduce reliability. Therefore, the network needs to be divided into regions.

[0032] Area division can determine the total number of nodes that can be accommodated in each area according to the distribution of network nodes in specific applications and the requirements of the centralized topology control algori...

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Abstract

A mixed topologic control method improving route protocol performance and system integral performance combines with AODV protocol. The technical solution is that method comprises an area division, a topologic control in an area and a topologic control among areas, characterized in that further comprises steps of improving AODV route protocol; adding two control messages POSITION and POWER in the AODV route protocol, respectively to send the topologic information to a central node by a node in the area and to send the power configuration information to each corresponding node by the central node, adding corresponding message sending and receiving function as well as a timer to carry out the topologic control; on another hand, mending a Hello message format and process flow of AODV and solving single way channel problem that could occur after topologic control and carrying out distributing control.

Description

technical field [0001] The invention belongs to the field of wireless Ad hoc network topology control methods, in particular to a hybrid topology control method combined with the AODV protocol for solving the problems of wireless Ad hoc network capacity, interference, energy, connectivity and routing. The invention has no strict limitation on the network scale, and is especially suitable for tactical cooperative communication in the military field and static Ad hoc networks, such as wireless sensor networks. Background technique [0002] Topology control is one of the important technologies of wireless Ad hoc network research in recent years. Topology control is to adjust the signal transmission power under the condition of ensuring a certain communication quality, and finally make the nodes form a fully connected network with the minimum transmission power. Through topology control, not only can save battery energy, prolong the life of nodes, simplify the network topology,...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L45/02
Inventor 李旭刘海霞惠博
Owner BEIJING JIAOTONG UNIV
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