Frequency-domain equalization for OFDMA-based multiuser MIMO systems with improper modulation schemes

Pei Xiao, Zihuai Lin, Anthony Fagan, Colin Cowan, Branka Vucetic, Yi Wu
2011 EURASIP Journal on Advances in Signal Processing  
In this paper, we propose a novel transceiver structure for Orthogonal Frequency Division Multiple Access (OFDMA) based uplink multiuser MIMO systems. The numerical results show that the proposed frequency-domain equalization schemes significantly outperform conventional linear MMSE-based equalizers in terms of bit error rate (BER) performance with moderate increase in computational complexity. Index Terms OFDMA, Multiple-Input Multiple-Output (MIMO), frequency domain equalization. 2
doi:10.1186/1687-6180-2011-73 fatcat:32jwai2ccfb3ha6kmuvfrtsbym