In this paper, a received signal strength (RSS) based location estimation method is proposed for a cooperative wireless relay network where the relay is a cognitive radio. We propose a method for the considered cognitive relay network to determine the location of the source using the direct and the relayed signal at the destination. We derive the Cramer-Rao lower bound (CRLB) expressions separately for x and y coordinates of the location estimate. We analyze the effects of cognitive behaviour of the relay on the performance of the proposed method. We also discuss and quantify the reliability of the location estimate using the proposed technique if the source is not stationary. The overall performance of the proposed method is presented through simulations. ©2010 IEEE.
|Original language||English (US)|
|Title of host publication||2010 3rd International Symposium on Applied Sciences in Biomedical and Communication Technologies (ISABEL 2010)|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|State||Published - Nov 2010|