Title :
An efficient adaptive receiver for MIMO-OFDM systems
Author :
Shen, Hong ; Zhang, Hua ; Zhao, Chunming
Author_Institution :
Nat. Mobile Commun. Res. Lab., Southeast Univ., Nanjing, China
Abstract :
In this paper, we present an adaptive receiver for multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) systems. The adaptive algorithm switches between the maximum likelihood detection (MLD) and the minimum mean square error (MMSE) detection according to the channel condition. By exploiting the correlation in both time and frequency domains of OFDM systems, we reduce the complexity of the algorithm further. Simulation in the long term evolution (LTE) system shows that the adaptive detection can achieve high performance with low complexity.
Keywords :
Long Term Evolution; MIMO communication; OFDM modulation; adaptive signal detection; frequency-domain analysis; least mean squares methods; maximum likelihood detection; radio receivers; time-domain analysis; LTE system; Long Term Evolution; MIMO-OFDM systems; MLD; MMSE detection; adaptive detection; adaptive receiver; frequency domain; maximum likelihood detection; minimum mean square error detection; multiple-input multiple-output systems; orthogonal frequency-division multiplexing systems; time domain; Adaptive systems; Complexity theory; Decoding; MIMO; OFDM; Receiving antennas; adaptive receiver; maximum likelihood detection (MLD); minimum mean square error (MMSE) detection; multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM);
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4577-1009-4
Electronic_ISBN :
978-1-4577-1008-7
DOI :
10.1109/WCSP.2011.6096710
