An Improved Range-based Localization Algorithm in Wireless Sensor Network
To further improve the localization accuracy for nodes in wireless sensor network, this paper proposes an improved range-based localization algorithm in wireless sensor network. Firstly, some anchor nodes are optimized and chosen. Then optimized anchor nodes databases are created using those optimized anchor nodes. Secondly, the distance, which between unknown node and anchor node in network, is measured by using anchor nodes from the optimized anchor nodes database. Lastly, the unknown node is located by using Euclidean and trilateration localization algorithm. Some simulation experiments results show that the improved range-based localization algorithm can improve the localization accuracy, and with the positioning process forward, the ratio of anchor nodes is gradually increasing, then localization accuracy is also gradually improved.
anchor node wireless sensor network range-based localization algorithm optimized anchor nodes databases
WANGJian-guo WANG Zhong-sheng ZHANG Ling SHIFei
School of Computer Science & Engineering of Xian Technological Univ., Xian, China, 710032
国际会议
上海
英文
2170-2174
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）