Design and implementation of a distributed WLS localization and tracking algorithm in wireless sensor network

Ching Hsien Wang, Pei Yun Tsai

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

In this paper, a distributed algorithm for localization and tracking in wireless sensor network is designed and implemented. Combining the fingerprint approach and subgradient optimization, the proposed algorithm, called golf algorithm, uses different strategies to attain fast movement for tracking a moving object and a fine tune to approach a stationary object, like a drive and a putt on the putting green in the golf. Based on the WLS objective function, a recursive form for both the fingerprint approach and subgradient optimization is derived and can be accomplished by anchor nodes in collaboration. From simulation results, we can see the proposed algorithm has better estimation performance than the conventional decentralized algorithms to localize a stationary or moving target in large wireless sensor networks. In addition, its hardware architecture is designed. The CORDIC operation is employed to compute the vector norm. Parallel processing is used to handle the calculation of fingerprint data. The tracking trajectories of the floating-point program and fixed-point hardware implementation are shown to be quite similar with small finite precision effect, which verifies the feasibility of this hardware solution.

原文???core.languages.en_GB???
主出版物標題2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
頁面4747-4752
頁數6
DOIs
出版狀態已出版 - 2013
事件2013 IEEE Wireless Communications and Networking Conference, WCNC 2013 - Shanghai, China
持續時間: 7 4月 201310 4月 2013

出版系列

名字IEEE Wireless Communications and Networking Conference, WCNC
ISSN(列印)1525-3511

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???event.eventtypes.event.conference???2013 IEEE Wireless Communications and Networking Conference, WCNC 2013
國家/地區China
城市Shanghai
期間7/04/1310/04/13

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