Study On Unequal Hierarchy Routing Protocol Of Wireless Sensor Network

Wireless Sensor Network (WSN) has brilliant and broad prospect as being a newlydevelopmental technology in recent years. With the arrivaling era of internet of things, the wirelessnetwork as one of the key technology plays a key role, and it brings great convenient to people’s life.Wireless Sensor Network consists of a large number of tiny sensor nodes, and nearly every nodeplays the same role, collecting and forwarding data. Because of the wireless sensor network’scharacteristics, large numbers of randomly distributed nodes only have limited energy. It is verydifficult to replenish after deployment, and how to save energy and improve energy utilization rateis becoming a hot research direction. Among several technologies in WSN, routing technology isone of the core technologies. In recent years it has proposed variety of energy efficiency based onrouting protocol schemes.In this paper, routing protocol energy problem on wireless sensor network has been researched,and the mainly work is based on the following aspects:1. Introduced wireless sensor network’s development background, the research purpose andsignificance and development trend.2. Introduced wireless sensor network’s basic composition, features, system structure and kindsof key technologies.3. According to the category of wireless sensor network routing protocol, the paper hasresearched various typical protocol and analyzed its characteristics and suitable range.4. Analyzed LEACH protocol and its energy consumption in detail. And on this basistheoretical it analyzed the cluster heads uniform energy consumption. Finally, it put forward a kindof improved algorithm CUCR, which used different proportion to compose clusters on layers, andweighted optimization master-vice cluster heads to collect and transfer data respectively. In theclusters it used improved PRIM algorithm to compose the chains, whose end node are cluster heads.The cluster heads transmitted the data on layers. The final simulation results show that CUCR hasbetter result on the network’s life than LEACH and EEUC.5. On the basis of analyzing the GSEN protocol, it pointed out the limitation of using Dijakstraalgorithm into a chain, and proposed using GASA algorithm into a chain. And it compared Dijakstra,GA, SA algorithm with GASA by simulation. Finally, it proposed an algorithm TL-GASA whichbased on GASA into a chain and weighted optimization two level cluster heads. The algorithmadopted cluster head compete radius method to unequal clustering, and optimized selecting clusterhead. It used GASA algorithm into a chain on the inner cluster nodes and primary cluster heads. The data is transmitted along the chain. The final simulation results show that the new algorithm isbetter than LEACH, GSEN in the network energy consumption and prolong the life of network.In view of the above research work, at last this paper makes summary. It briefly anaylized theexcellent aspects of the improved algorithm, and pointed out the direction of future development ofwireless sensor network, as well as the problems next steps needs to solve.