Title :
Ergodic sum rate analysis of K fading MIMO channels with linear MMSE receiver
Author :
Jiang Xue ; Caijun Zhong ; Ratnarajah, Tharm
Author_Institution :
IDCOM, Univ. of Edinburgh, Edinburgh, UK
Abstract :
In this paper, we investigate the ergodic sum rate of K fading MIMO channels with linear MMSE receiver, which is an analytically friendly fading model to describe both the small scale fading and shadowing. The exact closed-form expression of the ergodic sum rate was derived, which is applicable for arbitrary number of transmit and receive antennas and any signal to noise ratio (SNR) range. Moreover, simple expressions were derived for the ergodic sum rate in the high and low SNR regimes. The analytical results enable us to gain insights on how the key system parameters affect the ergodic sum rate of the system. Numerical results are presented and verified via Monte Carlo simulations.
Keywords :
MIMO communication; Monte Carlo methods; antenna arrays; fading channels; least mean squares methods; radio receivers; receiving antennas; transmitting antennas; Monte Carlo simulations; SNR range; analytically friendly fading model; ergodic sum rate analysis; exact closed-form expression; k-fading MIMO channels; linear MMSE receiver; receive antennas; signal to noise ratio; small scale fading model; small scale shadowing; transmit antennas; MIMO; Rayleigh channels; Receiving antennas; Shadow mapping; Signal to noise ratio; K fading MIMO; MMSE; ergodic sum rate;
Conference_Titel :
Wireless Communications and Mobile Computing Conference (IWCMC), 2013 9th International
Conference_Location :
Sardinia
Print_ISBN :
978-1-4673-2479-3
DOI :
10.1109/IWCMC.2013.6583778
