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Reliable routing method of mobile Ad hoc network

A reliable and routing technology, applied in the routing field of mobile Ad Hoc networks, can solve problems such as unreasonable routing, reduce extra overhead and ensure reliability.

Inactive Publication Date: 2009-09-16
BEIHANG UNIV
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Problems solved by technology

But in the mobile Ad hoc network environment, this kind of routing is very unreasonable

Method used

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  • Reliable routing method of mobile Ad hoc network
  • Reliable routing method of mobile Ad hoc network
  • Reliable routing method of mobile Ad hoc network

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Embodiment Construction

[0049] refer to figure 1 , the present invention adopts a cross-layer design framework, the evaluation of link stability starts from the data link layer and is delivered to the protocol of the upper layer, and finally, the maintenance work of the link stability table and the routing table is carried out at the network layer.

[0050] The nodes in the mobile Ad Hoc network generate location information according to the initial distance and direction, and deliver the location information to the link layer, and each node broadcasts its own location information to neighbor nodes. The node calculates the distance to each neighbor node and predicts the stability of each link based on the random walk model and coverage model. Link stability is defined as the probability L(d 0 , t), that is, assuming that the relationship between two nodes is at the initial time t 0 the distance is d 0 , the link between nodes is at (t 0 , t 0 +t) the probability of continuous connectivity during...

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Abstract

The invention relates to a reliable routing method in the context of a mobile Ad hoc network. The method aims to improve effectiveness of data transmission, takes combination of link stability and route selection as the core concept and solves the problem of reliable routing in the context of the Ad hoc network. In the method, data link layer design is closely linked with network layer design; the data link layer generates the newest link stability information for each node according to a link stability model; the network layer configures a link stability form according to the information; the nodes establish routings according to needs when needing to transmit data; the network layer takes the link stability form as a basis, the link stability as a standard for weighing on route selection to establish a reliable routing between the source nodes and the target nodes; a redundancy link is established for unstable links in routing paths to further improve reliability of the routing; advantages of active routing protocol and source-initiated protocol are integrated, routing reliability is ensured in that the link stability form needs to be updated in time; routing information in the routing form only needs to be updated when transmission begins, thus reducing extra expenditure for information control.

Description

technical field [0001] The invention relates to the field of routing of mobile Ad Hoc networks, in particular to a reliable routing method for mobile Ad Hoc networks based on link stability. Background technique [0002] The mobile AdHoc network is a multi-hop, temporary autonomous system composed of a group of mobile terminals with wireless transceivers. Nodes in the network can communicate with each other and all have the functions of terminal and routing. Traditional routing methods are designed for relatively stable network topologies, and they cannot meet the needs of rapid changes in mobile Ad hoc network topologies. Therefore, a reliable routing method is especially important for mobile Ad Hoc networks with poor network reliability and high node mobility. [0003] So far, researchers have proposed many mobile Ad hoc network routing methods, which can be mainly divided into the following three categories according to the routing discovery strategy: [0004] (1) Tabl...

Claims

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Application Information

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IPC IPC(8): H04W28/04H04W84/18
Inventor 白跃彬巩磊张会永高金梁
Owner BEIHANG UNIV
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