Title :
A soft interference cancellation detection scheme for distributed antenna MIMO systems
Author :
HongZhi, Zhao ; Youxi, Tang ; Ting, Kong
Author_Institution :
Nat. Key Lab of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
We propose an iterative soft interference cancellation (SIC) detection scheme for distributed antenna multiple-input multiple-output (DA-MIMO) systems. The received signal is pre-processed via a matched filter before SIC is applied, then, the proposed SIC treats the intersymbol interference (ISI) as Gaussian noise with matched mean and covariance. The probability associated with each transmit symbol can be iteratively updated by the probabilistic data association (PDA) filter until the desired bit error rate (BER) performance is obtained. Simulation results show that the proposed SIC in DTA-MIMO (distributed transmit antenna MIMO) systems can achieve almost the same performance as maximum likelihood detection (MLD) with reduced complexity.
Keywords :
Gaussian noise; MIMO systems; antenna arrays; computational complexity; error statistics; interference suppression; intersymbol interference; iterative methods; matched filters; probability; radio links; signal detection; transmitting antennas; BER; Gaussian noise; ISI; SIC detection scheme; bit error rate; complexity; distributed antenna MIMO systems; distributed transmit antenna MIMO systems; intersymbol interference; iterative soft interference cancellation detection scheme; matched filter preprocessing; maximum likelihood detection; multiple-input multiple-output systems; probabilistic data association filter; soft interference cancellation detection scheme; AWGN; Additive white noise; Bit error rate; Filters; Interference cancellation; MIMO; Maximum likelihood detection; Receiving antennas; Silicon carbide; Transmitting antennas;
Conference_Titel :
Communications, Circuits and Systems, 2005. Proceedings. 2005 International Conference on
Print_ISBN :
0-7803-9015-6
DOI :
10.1109/ICCCAS.2005.1493392
