NDLI: Improved DV-Hop algorithm for high accuracy and low energy consumption

Content Provider	IEEE Xplore Digital Library
Author	Liu Shaoqiang Zheng Yuan Zhong Zhi Li Yongzhou Fan Xiaoping
Copyright Year	2012
Description	Author affiliation: School of Information Science and Engineering, Central South University, Changsha, China (Liu Shaoqiang; Zheng Yuan; Zhong Zhi; Li Yongzhou; Fan Xiaoping)
Abstract	Most improved DV-Hop algorithms focus on the localization accuracy while underemphasize the energy conservation. In order to enhance the energy saving of wireless sensor networks, these algorithms need to be further improved. Upgrading the positioned nodes to be new-born anchors is an economical scheme to expedite unknown nodes localization and reduce total localization rounds, thus favor energy saving. Using the scheme of upgrading positioned nodes, this paper proposes a new algorithm based on DV-Hop, which restricts the hop counts between unknown nodes and anchors to reduce the energy consumption in flooding broadcast of anchors information. To decrease the impact of new-born anchors′ location errors on the positioning accuracy of unknown nodes, the upgrading round sequence of a new-born anchor is defined as the generation to distinguish its error influences. Taking the hop counts and the generations as weighting factors, the paper presents a new weighted average one-hop distance processing method to guarantee the localization accuracy. Simulation and analysis results show that the new algorithm can effectively decrease the positioning error and total localization rounds to take account of both the energy consumption and the accuracy of localization.
Starting Page	349
Ending Page	353
File Size	129461
Page Count	5
File Format	PDF
ISBN	9781467300889
e-ISBN	9781467300896
DOI	10.1109/CSAE.2012.6272970
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-25
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Algorithm design and analysis Wireless sensor networks Energy consumption Accuracy Error analysis DV-Hop algorithm Energy conservation Localization rounds Generation of new-born anchor Weighted average one-hop distance Classification algorithms Hop counts restricted
Content Type	Text
Resource Type	Article

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