Community Model Based Strategies For Message Distribute On Mobile Wireless Networks

In recent years, wireless network communication technology has been rapid development.Portable and micro computing devices are rapidly growing popularity. The proportion ofwireless network-based applications and services in the Internet services is growing. With moreand more users start using the smart phone with Wi-Fi or Bluetooth, PDAs and mobile wirelessnetwork equipment and other mobile devices with wireless LAN access, wireless LANpenetration continues to rise. The connection between the wireless network technology and themobile wireless network terminal became more and more close and mature. Because most userscarry wireless mobile devices to access the wireless network, which makes the wireless networknodes have the characteristics of human social behavior. These years, researchers with the helpof computer technology, mathematics, graph theory makes the research of community networksboom.Combined with the dates’distribution characteristics of wireless ad hoc networks andcommunity networks analysis methods, our research has proposed the community dividedmethod and the message distribution strategy. Designed to improve the wireless networkmessage forwarding success rate and reduce the overhead of the entire system. Research on thecharacteristics of community networks, our paper presents a community partitioning algorithmbased on the segmentation strategy: The edge of the minimum similarity will be removed basedon the similarity sorting. After the completion of community division, the system will specify thecentral node according to node mobility within the community, connectivity, the sequence of theweight of the cache capacity for each community.On the other hand，the data delivery method using the carrying-and-forwarding strategy hasplaced extra emphasis on reduce the network delay and ignored Network bandwidth and clientload. The node selection method according interest has reduced the redundancy on independentnode, but because of it needed to select Intermediate node , this method cost a long delay. Ourpaper proposed a data forwarding method based on community division in wireless Ad hocnetwork. It aims to shorten network delay and reduce resource redundancy in data forwardingprocess. The core content is as follows:（1）、Briefly introduced the research progress and applications of community network,described the progress of domestic and international research on the methods of communitydivision and the research status of wireless ad hoc network message distribution method and the existence of problems.（2）、Summarized the definition and characteristics of wireless ad hoc networks, thecurrent applications and the development prospects of wireless ad hoc networks. Detailed themodel and its application of social network theory and explained the characteristics andapplications of the concept of car wireless ad hoc networks.（3）Proposed the clustering algorithm based Community division method, and introducedmultiple parameters to dynamically select the central node of each community. On messageforwarding stage, proposed hops-limit epidemic routing protocol and candidate node based"storage - carry - forward" method.（4）、Simulate the process of our data delivery method by ONE simulation platform andsimulate the Epidemic routing algorithm, the PROPHET and the Spray And Wait algorithm.After the comparison and analysis of experimental data we can reach a conclusion: the proposedalgorithm is superior to the EPI, PROPHET, SAW in delivery rate, network latency and nodecache.In conclusion, the article provides effective solution to the key problem of improve thewireless network message forwarding success rate and reduce the overhead of the entire systemand has a certain theoretical meaning and application value in wireless ad hoc networks.