WSN Deployment Optimization And Link Quality Assessment

Wireless sensor network is a kind of emerging technologies about acquiringand processing data. Reasonable node deployment can optimize the resources ofexisting network, and determine the integrity of the monitoring information,which will affect the quality of service in wireless sensor network.The main content of this paper are as follows:Firstly, the paper constructed node deployment optimization model, weimproved the traditional virtual force algorithm. And we utilized the improvedvirtual force algorithm to conduct optimization and simulation for theinitialization of node deployment being random distribution, the results showedthat in terms of network coverage, the improved virtual force algorithm besuperior to the traditional one. Secondly, the problem of existing nodedeployment optimization simply ameliorated the node deployment algorithm,without fully considering the link quality. This paper introduced link qualityassessment(LQA) aimed at the problem of link quality, and used the improvedvirtual force algorithm to conduct optimization and simulation for three initialdistribution of the rectangle, ring and disc from the LQA value and networkcoverage, respectively. The results show that the wireless sensor network nodewith three different initialization distributions are optimized and the LQA canbetter evaluate the link quality. At the same time, compared to the other twodistributions, the ring distribution can achieve maximum network coverage inthe case of less iteration, get the appropriate LQA value and the best qualitycommunication, which will save energy and resources, extend the networklifetime, and provide theoretical reference value for future research work onnode deployment.Finally, we summarized related research work of this paper.