Research and Application in the Key Technology of Wireless Sensor Network Location System
An algorithm of Localization is proposed to solve problems of DV-Hop overlapping and localization inaccuracy by adopting RSSI ranging technology to do subsidiary localization. A reasonable RSSI model is set up and introduced. The ratio of different distance can be gained from the measured value of RSSI ratio. Compared the received RSSi value with the calculated average RSSI value, the ratio is set as a hop-count and is saved. When the hop-count is more than 1, the calculated ratio in first phase is accumulated separately, which is used to reduce the location error significantly. The simulation experimental results show that the improved algorithm of localization is more stable, reliable and precise. Under the circumstance of fairly standard topology, compared with localization accuracy of other present algorithms of localization, about 10％ can be raised.
wireless sensor networks localization systems DV-Hop RSSI
Shi Chunhe Han Xiaowei Yuan Zhonghu Yang Daquan
School of Information Engineering, Shenyang University, Shenyang, China School of Information Engineering, Shenyang University of Technology, Shenyang, China
国际会议
2009 International Workshop on Information Security and Application(2009 信息安全与应用国际研讨会)
青岛
英文
484-487
2009-11-21（万方平台首次上网日期，不代表论文的发表时间）