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AdHoc network multipath routing method oriented to link stability

A stable and network technology, applied in network topology, electrical components, wireless communication, etc., can solve problems such as poor QoS guarantee ability, and achieve the effect of low packet loss rate, low time complexity, and good support

Inactive Publication Date: 2012-11-28
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0006] In order to overcome the existing concurrent multi-path routing method based on load balancing for large-scale Ad Hoc networks in the case of rapid changes in the topology of the poor QoS guarantee capability, the present invention provides a link stability-oriented Ad Hoc Network Multipath Routing Methods

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  • AdHoc network multipath routing method oriented to link stability
  • AdHoc network multipath routing method oriented to link stability
  • AdHoc network multipath routing method oriented to link stability

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Embodiment Construction

[0034] The following examples refer to Figure 1~5 .

[0035] The Ad Hoc network multipath routing method facing link stability of the present invention belongs to the active multipath routing method, and the specific steps are as follows:

[0036] 1. Establishment of network topology;

[0037] 2. Establishment of multipath routing;

[0038] 3. Stable link determination based on mobile prediction;

[0039] 4. Routing maintenance strategy.

[0040] The step 1 described in the present invention includes two parts, that is, the sending and receiving of the HELLO message and the sending and receiving of the topology control message. These two parts provide the basis for the nodes to establish the network topology map.

[0041] figure 1 Shown is the flow chart of the node sending message of the present invention.

[0042] 1) in a kind of Ad Hoc network multi-path routing method facing link stability described in the present invention, each node all sets up timer, so that tri...

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Abstract

The invention discloses an AdHoc network multipath routing method oriented to link stability, which is used for solving the technical problem that the QoS (Quality of Service) support ability of the existing AdHoc network concurrent multipath routing method based on load balancing is poor when the topological structure of a large-scale AdHoc network is changed fast. The technical scheme is that firstly a network topological graph is established, then multipath routing is established, and then stable link judgment based on moving projection is conducted, and finally route maintenance is conducted. Since the method combining multipath routing and moving projection is adopted, the network resource is fully utilized; main and backup paths are established among all the nodes, the link stability is ensured by using the moving projection pre-judging method, the route interrupt times is reduced, and the QoS (Quality of Service) support ability is improved when the topological structure of the large-scale AdHoc network is changed fast. The method has strong adaptability on the topological change of the network, has the characteristics of small end-to-end time delay and low packet loss probability, and provides good support for voice and video communication.

Description

technical field [0001] The invention relates to an Ad Hoc network multipath routing method, in particular to a link stability-oriented Ad Hoc network multipath routing method. Background technique [0002] Ad Hoc network is a special wireless mobile communication network. It does not depend on any network infrastructure, has strong self-organization, robustness and invulnerability, and has broad application prospects in the fields of military, emergency rescue, disaster relief and emergency communications. Communication interruption and data loss caused by node mobility and link instability in Ad Hoc networks are the most important reasons why it is difficult to provide QoS that meets the requirements in Ad Hoc networks. [0003] Traditional Ad Hoc network routing protocols are dominated by single-path routing protocols, such as OLSR, DSR, and AODV. Although the single-path routing protocol has a simple algorithm and is easy to manage and configure, it cannot handle the pr...

Claims

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Application Information

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IPC IPC(8): H04W40/04H04W84/18
Inventor 陈旿洪亮慕德俊肖迪薛霜侯维纬于振兴
Owner NORTHWESTERN POLYTECHNICAL UNIV
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