Title :
Performance analysis of multi-antenna relay systems with statistical Channel State Information at the relay
Author :
Molu, Mehdi M. ; Burr, Alister
Author_Institution :
Univ. of York, York, UK
Abstract :
Assuming statistical Channel State Information (CSI) available at the relay, the performance of a dual-hop MIMO relay network is studied in this paper. The cumulative density function (cdf) of received SNR at destination is studied and closed-form expressions are derived for the asymptotic cases of fully-correlated and non-correlated scenarios; moreover, the statistical characteristics of the SNR is further studied and an approximate cdf of the SNR is derived for arbitrary correlation. Then, a simple power allocation algorithm is proposed which is called “proportional power allocation”. The algorithm is explained in detail for the case of two antennas and three antennas at the relay. The simulation show excellent agreement between the proposed algorithm and optimal solution that is obtained by exhaustive search.
Keywords :
MIMO communication; antenna arrays; antenna radiation patterns; relay networks (telecommunication); statistical analysis; wireless channels; CDF; SNR statistical characteristics; cumulative density function; dual-hop MIMO relay network; multiantenna relay system performance analysis; proportional power allocation algorithm; statistical CSI; statistical channel state information; Antennas; Closed-form solutions; Correlation; Random variables; Relays; Resource management; Signal to noise ratio;
Conference_Titel :
Networks and Communications (EuCNC), 2015 European Conference on
Conference_Location :
Paris
DOI :
10.1109/EuCNC.2015.7194040
