Title :
Outage performance of MIMO cognitive relay networks with antenna selection
Author :
Hao Zhang ; Xinjie Wang ; Gulliver, T.A. ; Wei Shi ; Hongjiao Zhang
Author_Institution :
Dept. of Electr. Eng., Ocean Univ. of China, Qingdao, China
Abstract :
In this paper, a novel antenna selection strategy is proposed and analyzed for dual hop MIMO cognitive amplify-and-forward (AF) relay networks over independent non-identically distributed (i.n.i.d.) Nakagami-m fading channels. Spectrum sharing is employed with secondary users constrained by a limit on the interference to the primary receivers. All secondary users are equipped with multiple antennas and have a maximum power constraint. The best antenna pairs are selected for secondary user communications. The outage probability is derived and used to evaluate the impact of antenna selection on the outage performance. The analytic results are validated by Monte Carlo simulation.
Keywords :
MIMO communication; Monte Carlo methods; Nakagami channels; amplify and forward communication; antenna arrays; cognitive radio; radio spectrum management; relay networks (telecommunication); Monte Carlo simulation; amplify-and-forward networks; antenna selection strategy; best antenna pair selection; dual-hop MIMO cognitive AF relay networks; maximum power constraint; nonidentically-distributed Nakagami-m fading channels; outage performance; outage probability; primary receivers; secondary user communications; spectrum sharing; Cognitive radio; Fading; MIMO; Receiving antennas; Relays; Transmitting antennas; Amplify-and-forward; Antenna selection; Congnitve relay network; MIMO;
Conference_Titel :
Communications, Computers and Signal Processing (PACRIM), 2013 IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
DOI :
10.1109/PACRIM.2013.6625440
