A Simplified Adaptive Modulation Scheme for MIMO Spatial Multiplexing Systems

Xiaolin Che; Chen He; Dan Wang

2nd International ICST Conference on Communications and Networking in China

Research Article

A Simplified Adaptive Modulation Scheme for MIMO Spatial Multiplexing Systems

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/CHINACOM.2007.4469439,
    author={Xiaolin Che and Chen He and Dan Wang},
    title={A Simplified Adaptive Modulation Scheme for MIMO Spatial Multiplexing Systems},
    proceedings={2nd International ICST Conference on Communications and Networking in China},
    publisher={IEEE},
    proceedings_a={CHINACOM},
    year={2008},
    month={3},
    keywords={MIMO  adaptive modulation  spatial multiplexing},
    doi={10.1109/CHINACOM.2007.4469439}
}

Xiaolin Che
Chen He
Dan Wang
Year: 2008
A Simplified Adaptive Modulation Scheme for MIMO Spatial Multiplexing Systems
CHINACOM
IEEE
DOI: 10.1109/CHINACOM.2007.4469439

Xiaolin Che¹^,*, Chen He²^,*, Dan Wang²^,*

1: Dept. of Electronics Engineering, Shanghai Jiaotong University Dongchuan Road 800, 200240, Shanghai, China,
2: Dept. of Electronics Engineering, Shanghai Jiaotong University Dongchuan Road 800, 200240, Shanghai, China

*Contact email: chexiaolin@sjtu.edu.cn, chenhe@sjtu.edu.cn, wangdan2004@sjtu.edu.cn

Abstract

In this paper, a simplified adaptive modulation (AM) scheme is presented for MIMO spatial multiplexing systems to improve the bit error rate (BER) performance. Constrained to total data rate and equal power allocated to each transmit antenna, an efficient AM algorithm is described to minimize the average BER of the system. The performances of vertical Bell labs layered space-time (V-BLAST) structure combined with the presented AM scheme are investigated. Simulation results have shown that the presented scheme can provide superior performances over the original V-BLAST system under perfect and imperfect channel state information (CSI).

Keywords: MIMO adaptive modulation spatial multiplexing

Published: 2008-03-07
Publisher: IEEE
Modified: 2011-07-13

: http://dx.doi.org/10.1109/CHINACOM.2007.4469439