Title :
Relay Selection with Imperfect CSI in Bidirectional Cooperative Networks
Author :
Taghiyar, M. Jafar ; Muhaidat, Sami ; Liang, Jie ; Dianati, Mehrdad
Author_Institution :
Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC, Canada
fDate :
1/1/2012 12:00:00 AM
Abstract :
We study the performance of bidirectional multi-relay cooperative networks in the presence of imperfect channel state information by means of the correlation coefficient of the estimated channel gains and their actual values, where the max-min relay selection is used. We show that the performance is determined by the average performance of the two links and neither of them dominates it individually. We also present a power allocation scheme that minimizes the outage probability.
Keywords :
cooperative communication; probability; resource allocation; bidirectional multi-relay cooperative networks; channel gains; channel state information; correlation coefficient; max-min relay selection; outage probability; power allocation; Channel estimation; Estimation error; Fading; Relays; Resource management; Signal to noise ratio; Wireless communication; Bidirectional networks; imperfect CSI; outage probability;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2011.111011.111774
