Adaptive Transmission With Linear Computational Complexity in MIMO-OFDM Systems

Author

Luo, Zhendong ; Gao, Hong ; Liu, Yuanan

Author_Institution

Alcatel-Lucent, Beijing

Volume

55

Issue

10

fYear

2007

Firstpage

1873

Lastpage

1877

Abstract

A novel adaptive transmission scheme is proposed to improve the computational efficiency of conventional adaptive algorithms for multiple-input multiple-output orthogonal frequency-division multiplexing systems. By exploiting the stationary ergodicity of subchannel amplitudes, the proposed scheme can reduce the complexity of any existing adaptive algorithms to a considerably low level that is linear in the number of subchannels, while it causes little performance degradation.

Keywords

MIMO communication; OFDM modulation; computational complexity; MIMO-OFDM systems; adaptive algorithms; adaptive transmission; linear computational complexity; multiple-input multiple-output orthogonal frequency-division multiplexing systems; subchannel amplitudes; Adaptive algorithm; Computational complexity; Degradation; Fading; MIMO; OFDM; Random processes; Receiving antennas; Transmitters; Transmitting antennas; Adaptive transmission; fading channels; multiple-input multiple-output (MIMO) systems; orthogonal frequency-division multiplexing (OFDM);

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/TCOMM.2007.906397

Filename

4352096