NDLI: Cooperative Beamforming with Mobile Wireless Sensor Nodes: Performance Analysis and Optimal Node Locations

Content Provider	IEEE Xplore Digital Library
Author	Liang Zheng Xian-Da Zhang
Copyright Year	1972
Abstract	In this paper, cooperative beamforming in the context of wireless sensor networks with random mobile nodes is analyzed. In the first part, we use two dimensional Brownian motion to model mobile nodes, which are assumed to follow Gaussian distribution at every time. The concept of overall outage probability is introduced, and its lower and upper bounds are derived theoretically. In the second part, we extend the Brownian motion to any form and prove the beampattern with minimum mainlobe as well as maximum three-dB sidelobe region can be got simultaneously, then we design a low complexity algorithm to arrange sensor node locations to produce this optimum beampattern. Simulation results show that the overall outage probability and its lower and upper bounds are in good agreement, and compared with uniform and Gaussian distribution, the beampattern produced by the algorithm has sharpest mainbeam and significantly small sidelobe peaks.
Starting Page	3375
Ending Page	3380
Page Count	6
File Size	310925
File Format	PDF
ISSN	00906778
Volume Number	58
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Wireless sensor networks Gaussian distribution Mobile communication Upper bound Markov processes Algorithm design and analysis random array Cooperative beamforming mobile environment wireless sensor networks beampattern
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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