Multicast route method of mobile self-organizing network system

A mobile ad hoc network system technology, applied in the field of mobile ad hoc network system routing, can solve problems such as performance sacrifice, achieve low latency, improve usage efficiency and data delivery rate

Inactive Publication Date: 2011-06-08
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0003] In order to study the multicast routing method suitable for the mobile ad hoc network in the case of high-speed movement of nodes, through the analysis of relevant research content at home and abroad, through theoretical analysis and related experiments, it can be known that both structured and unstructured multicast protocols are only It can meet the performance requirements of certain aspects to a certain extent, and the sacrifice of performance in other aspects is relatively large

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[0038] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0039] A multicast routing method for a mobile self-organizing network system of the present invention, the schematic flowchart of which is as follows figure 1 shown, the specific expansion is as follows:

[0040] S1. The node periodically sends out HELLO messages (including the ID (Identity) and location information of the current node) to detect and update neighbor nodes. The maximum number of relay hops for HELLO messages is 1, that is, HELLO messages cannot be forwarded, and only nodes reachable by one hop can receive HELLO messages. The node receiving the HELLO message establishes and updates its own neighbor table according to the node ID and location information it contains.

[0041] S2. The source node uses the location of the node to predict the route orientation. Since the node only knows the location information of the node and its n...

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Abstract

The present invention discloses a multicast route method of a mobile self-organizing network system. The method of the present invention is put forward against the prior art that the present multicast route method can not satisfy the self-organizing network with rapidly moving nodes, and the method comprises the steps as follows: a node regularly sends a HELLO message to perform detection and update of a neighbor node; a source node performs a route orientation prediction by using geological position of the node; the source node obtains positional information of a multicast group object node,then adds object node ID and the positional information into a data head object node domain, and sends a DATA message; and other nodes determine how to forward the data according to the head information. The present invention puts forward a data transmission guiding mechanism based on positional information prediction, and applies a delay tolerance technology to the network, therefore in an environment where the nodes move rapidly and topology changes quickly, the method of the present invention can raise use efficiency and data delivery rate of network data transmission with the preconditionthat the requirement of low time delay for the network is satisfied.

Description

technical field [0001] The invention belongs to the technical field of mobile communication, and in particular relates to a routing method for a mobile self-organizing network system. Background technique [0002] For traditional wireless ad hoc networks, nodes are usually in a static or low-speed motion state. In this case, the network topology changes slowly, and the requirements for route selection, node communication bandwidth and transmission delay are low. However, in a mobile self-organizing mobile network system such as UAV, the UAV network nodes will move and fly at high speed, and the mobile self-organizing network composed of UAV groups is located in harsh environments such as battlefields, and the entire network operates normally and stably. The situation is worse. In this case, indicators such as network data transmission energy consumption are no longer the main aspects that constrain the design of the entire network routing algorithm. In the UAV mobile self...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W40/12H04W40/24
Inventor 张可朱秀莹张伟李炜
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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