Study On Network Control In Wireless Self-organization Networks

Wireless self-organization network is one of most important technology in the post-3 G era. The scheme on network control, clustering and routing is the key technology in wireless network. According to the actual requirements and environment, the realization of clustering and routing protocol is given based on the analysis of the network characteristics. At the same time, a study on mobility model in wireless self-organization network is made, and we deal with the mobility characteristics, topology validity and TTL renew algorithm.This thesis is organized as follows: According to the basic concept of the wireless self-organization network, a new kind of clustering and routing protocol is proposed based on the existing protocols. We introduce how to carry out the clustering and routing protocol in wireless self-organization network, and transplant the procedure code to different experiment platform. A brief realization of wireless network is presented with emphasis on the processing of protocols. An analysis of the mobility in wireless self-organization network is made with the random walking model. We obtain the stabilization probabilities of topologic changes in the network as a function of the moving time. Then a novel strategy of topologic renew is proposed base on identify information of each node. Because a large number of packets in continuous traffic, especially voice traffic will be lost when a node move to another cluster, a non-linearity TTL renew algorithm is given in order to adapt the mobility characteristics of wireless self-organization network and improve its performance of handoff. An initial analysis of these strategies has been made with satisfactory results.