An Improved DV-Hop Localization Algorithm with Reduced Node Location Error for Wireless Sensor Networks

Hongyang CHEN  Kaoru SEZAKI  Ping DENG  Hing Cheung SO  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E91-A    No.8    pp.2232-2236
Publication Date: 2008/08/01
Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e91-a.8.2232
Print ISSN: 0916-8508
Type of Manuscript: LETTER
Category: Digital Signal Processing
DV-Hop,  localization,  wireless sensor networks,  

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In this paper, we propose a new localization algorithm and improve the DV-Hop algorithm by using a differential error correction scheme that is designed to reduce the location error accumulated over multiple hops. This scheme needs no additional hardware support and can be implemented in a distributed way. The proposed method can improve location accuracy without increasing communication traffic and computing complexity. Simulation results show the performance of the proposed algorithm is superior to that of the DV-Hop algorithm.