Title :
Approximation to the Capacity of Rician Fading MIMO Channels
Author :
Xu, Rongtao ; Zhong, Zhangdui ; Chen, Jiann-Mou
Author_Institution :
State Key Lab. of Rail Traffic Control & Safety, Beijing Jiaotong Univ., Beijing
Abstract :
In this paper, the capacity of multiple-input multiple-output (MIMO) systems over a Rician fading channel is evaluated. We show that the capacity of MIMO Rician channels can be well approximated by that of correlated MIMO Rayleigh channels. We take the Rician channel with rank-1 mean matrices as an example, the asymptotic capacities at low and high signal- to-noise ratio (SNR) regions are analyzed. Finally, the asymptotic capacity loss of Rician channels relative to Rayleigh channels is derived.
Keywords :
MIMO communication; Rayleigh channels; Rician channels; approximation theory; channel capacity; correlation methods; matrix algebra; Rician fading MIMO channel capacity; approximation theory; correlated Rayleigh channel; multiple-input multiple-output system; rank-1 mean matrix; Channel capacity; Closed-form solution; Fading; MIMO; Rayleigh channels; Receiving antennas; Rician channels; Signal analysis; Signal to noise ratio; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th
Conference_Location :
Barcelona
Print_ISBN :
978-1-4244-2517-4
Electronic_ISBN :
1550-2252
DOI :
10.1109/VETECS.2009.5073406
