TY - JOUR
T1 - A robust relay selection strategy for cooperative systems with outdated CSI
AU - Vicario, Jose Lopez
AU - Bel, Albert
AU - Morell, Antoni
AU - Seco-Granados, Gonzalo
PY - 2009
Y1 - 2009
N2 - In this paper, we consider a cooperative system based on relay selection in a scenario where the available channel state information (CSI) is subject to delays. In order to exploit the selection diversity gains of the system while providing robustness against CSI inaccuracy, we propose a robust relay selection strategy based on a minimum mean square error (MMSE) Bayesian estimator. As shown in the paper, the proposed robust strategy provides significant gains in scenarios with different levels of CSI inaccuracy.
AB - In this paper, we consider a cooperative system based on relay selection in a scenario where the available channel state information (CSI) is subject to delays. In order to exploit the selection diversity gains of the system while providing robustness against CSI inaccuracy, we propose a robust relay selection strategy based on a minimum mean square error (MMSE) Bayesian estimator. As shown in the paper, the proposed robust strategy provides significant gains in scenarios with different levels of CSI inaccuracy.
UR - http://www.scopus.com/inward/record.url?scp=70349676057&partnerID=8YFLogxK
U2 - 10.1109/VETECS.2009.5073336
DO - 10.1109/VETECS.2009.5073336
M3 - Article
AN - SCOPUS:70349676057
SN - 1550-2252
JO - IEEE Vehicular Technology Conference
JF - IEEE Vehicular Technology Conference
ER -