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

fYear

2011

fDate

9-11 Nov. 2011

Firstpage

1

Lastpage

5

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);

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/WCSP.2011.6096710

Filename

6096710