Title :
Scaling Law of an Opportunistic Power Allocation Scheme for Amplify-and-Forward Wireless Sensor Networks
Author :
Matamoros, Javier ; Antón-Haro, Carles
Author_Institution :
Centre Tecnol. de Telecomunicacions de Catalunya (CTTC), Castelldefels, Spain
fDate :
2/1/2011 12:00:00 AM
Abstract :
In this letter, we address the problem of decentralized parameter estimation with Amplify-and-Forward Wireless Sensor Networks (WSNs). We focus on a previously proposed Opportunistic Power Allocation (OPA) scheme and derive the scaling law which determines how distortion decreases when the number of sensors grows without bound. Performance is assessed and compared with that of Uniform Power Allocation (UPA) and optimal Water-Filling (WF) strategies.
Keywords :
amplify and forward communication; parameter estimation; wireless sensor networks; amplify-and-forward wireless sensor networks; decentralized parameter estimation; opportunistic power allocation scheme; optimal water-filling strategies; uniform power allocation; Opportunistic communications; decentralized parameter estimation; wireless sensor networks;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2010.120610.101364
