Title :
Error-Constrained Frequency Selection for Wireless Sensor Network Beamforming
Author :
Carpenter, Greggory ; Frolik, Jeff
Author_Institution :
Sch. of Eng., Univ. of Vermont, Burlington, VT, USA
fDate :
6/1/2012 12:00:00 AM
Abstract :
This work considers beamforming by a distributed wireless sensor network working in collaboration as a phased-array. Using the worst-case error of the constituent parts of the phase-estimation system, that is, location estimation error, synchronization error, and delay quantization error, a useful operational frequency for beamforming is determined. This analysis approach yields a way to directly consider the impacts of each error source using commonly reported performance metrics. The results are demonstrated analytically and through simulation.
Keywords :
array signal processing; phase estimation; quantisation (signal); synchronisation; wireless sensor networks; delay quantization error; distributed wireless sensor network beamforming; error constrained frequency selection; location estimation error; operational frequency; phase estimation system; phased array; synchronization error; Array signal processing; Arrays; Estimation error; Gain; Quantization; Synchronization; Wireless sensor networks; Wireless sensor networks; phased arrays; radio frequency;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/WCL.2012.031512.110290