An energy-efficient and distributed approach to beamforming in a wireless sensor network

Author

Papalexidis, Nikolaos ; Walker, T. Owens, III ; Tummala, Murali ; McEachen, John

Author_Institution

Dept. of Electr. & Comput. Eng., Naval Postgrad. Sch., Monterey, CA

fYear

2008

fDate

26-29 Oct. 2008

Firstpage

878

Lastpage

881

Abstract

Collaborative beamforming can be used in a wireless sensor network to increase the effective communication range of the network. In this paper, the power consumption of existing least squares based beamforming solutions is analyzed and an energy-efficient, distributed algorithm for beamformer weight calculation is proposed. Simulation results are provided to demonstrate that the proposed algorithm closely approximates the performance of an ideal uniform linear array while providing significant energy savings over existing solutions.

Keywords

array signal processing; least squares approximations; power consumption; wireless sensor networks; beamforming; distributed algorithm; power consumption; wireless sensor network; Algorithm design and analysis; Array signal processing; Collaboration; Communication effectiveness; Distributed algorithms; Energy consumption; Energy efficiency; Least squares approximation; Least squares methods; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2008 42nd Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

978-1-4244-2940-0

Electronic_ISBN

1058-6393

Type

conf

DOI

10.1109/ACSSC.2008.5074536

Filename

5074536