Title :
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
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;
Conference_Titel :
Signals, Systems and Computers, 2008 42nd Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-2940-0
Electronic_ISBN :
1058-6393
DOI :
10.1109/ACSSC.2008.5074536
