| This dissertation is about the project of Information Transmission Subsystem (ITS) Development, a project of the Nation High-Tech Research and Development Program of China.The main task of the project is the construction of three FM channel hierarchical self-organizing wireless network, achieving self-organizing networks and communications. This projiect is organized with a 3-layered network structure. Each layer is made up of several wireless self-organized subnets (the top-level layer has only one subnet). Due to the multi-level sub-network interconnection structure, related to the routing network and network routing. Network channel base on frequency hopping and spectrum spread FM Wireless Channel Machine.Firstly, we analyze the FM channel characteristics, and the impact to the routing protocol, summing up the design of the FM channel routing protocol particularity.And summing up the existing traditional network routing protocol is not suitable for operation in the VHF channel.Then we analyze the the FM channel self-organizing network routing protocols that we have proposed and designed in this project. In a laboratory environment simulating system testing, certification of the agreement integrity and accuracy; in the field of real time environment under the network began testing confirmed the validity of the agreement with the stability, meet the demand routing. At the same time according to the problems found in testing,combining the existing link layer incidentally technology, improving the protocol, so that it can better work in the FM channel.Used the incidentally technology, when the nodes send data, it will be their neighbors quality information in passing information in the neighbors information is sent, Each node can easily efficiently control their efficient direct link around the topology, and choose the reasonable path.The new protocol can operate well and choose the reasonable path to forward packets among the different hierarchical subnets. |
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