Topology Control Method for Mobile Ad Hoc Networks

Abstract

The invention discloses a topology control method of a mobile cluster self-organized network. A single-path routing protocol, a multi-path routing protocol and a resource scarcity algorithm are combined to solve a problem that the end-to-end cannot establish the complete communication line and has to realize the data best-effort transmission due to the high speed of the node and the long delay of the link in a wireless self-organized network. The method comprises the following steps: establishing a high-speed motion chain-like topology communication model and a three-section intermittent segmentation topology communication model, putting forward a method for realizing routing control management by using three-layer routing layers under a situation that two data link layers are in intermittent connection, and designing a storage-forwarding strategy, a greedy connection strategy, a resource releasing strategy, a multi-path parallel transmission strategy and a resource scarcity preference strategy and other feasible programs, and a design scheme and realization method of a best-effort transmission mechanism on a hardware platform on the basis of above-mentioned operations. By using the method disclosed by the invention, the theory and practice basis is established for the real communication of various wireless self-organized networks under the high-speed mobile and long delay environments and like server environments.

Description

technical field [0001] The invention relates to the communication field, in particular to a topology control method of a mobile cluster ad hoc network. Background technique [0002] The current mainstream wireless network (such as mobile cellular network, Ad-Hoc network, MANET, short wave, ultrashort wave, etc.) protocols are all established on the TCP / IP architecture, and network research is carried out based on the premise of link connectivity. Therefore, network communication directly depends on the continuous connection between end-to-end nodes, the continuous stability of the topology, the estimable transmission delay, and the reliable terminal bit error rate. In communication networking, topology control is the basis of different networking research, especially in asymmetric links and segmented networks, topology control is a prerequisite for solving end-to-end data communication. [0003] When the mobile cluster works in a non-stationary state, it is accompanied by r...

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Problems solved by technology

[0003] When the mobile cluster works in a non-stationary state, it is accompanied by random motion, high and low range distribution, link asymmetry, node oscillation access, and intermittent network connectivity, which will lead to low success rate of data delivery in network communications and delays. High, high packet loss rate, frequent vibration of routing tables or data discarding, resulting in serious consequences of unreachable targets and network communication paralysis in extreme cases. Therefore, the existing static topology control methods cannot adapt to unreliable link environments. This is a key issue affecting the application of communication systems

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