Title :
Exact BER analysis of MIMO MRC systems with channel estimation error and interference
Author_Institution :
Commun. Res. Centre Canada, Ottawa, ON, Canada
Abstract :
In this paper, we investigate the impact of channel estimation error on the average bit error rate (BER) of multiple-input multiple-output (MIMO) wireless systems with maximum ratio transmission (MRT) beamforming and maximum ratio combining (MRC) reception, known as MIMO MRC systems. The analysis is performed over frequency-flat Rayleigh fading channels in the presence of co-channel interference, where each interferer is assumed to be from a single transmit antenna. Previous error rate expressions in the literature are approximate and include hypergeometric functions. In contrast, the analytical result derived in this paper is exact and in the form of finite terms of elementary functions. It is verified by Monte Carlo simulations and utilized to evaluate the overestimation arising in the error rate results obtained in the literature.
Keywords :
MIMO communication; Monte Carlo methods; Rayleigh channels; array signal processing; channel estimation; cochannel interference; diversity reception; error statistics; MIMO MRC systems; MRT beamforming; Monte Carlo simulations; channel estimation error; co-channel interference; exact BER analysis; frequency-flat Rayleigh fading channels; hypergeometric functions; maximum ratio combining reception; maximum ratio transmission beamforming; multiple-input multiple-output wireless systems; Bit error rate; Channel estimation; Interference; MIMO; Receiving antennas; Signal to noise ratio; Transmitting antennas;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2015 IEEE
Conference_Location :
New Orleans, LA
DOI :
10.1109/WCNC.2015.7127546
