Optimal bit allocation adaptive modulation algorithm for MIMO system

Author

Lingyan Fan ; Chen He ; Guorui Feng

Author_Institution

Electr. Eng. Dept., Shanghai JiaoTong Univ., Shanghai, China

Volume

9

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

136

Lastpage

140

Abstract

In this paper, an adaptive minimum transmit power modulation scheme under constant data rate and fixed bit error rate (BER) for the multiple-input multiple-output (MIMO) system is proposed. It adjusts the modulation order and allocates the transmit power to each spatial sub-channel when meeting the user´s requirements at the cost of minimum transmission power. Compared to the other algorithm, it can obtain good performance with lower computational complexity and can be applied to the wireless communication system. Computer simulation results present the efficiency of the proposed scheme. And its performance under different channel condition has been compared with the other algorithm.

Keywords

MIMO communication; adaptive modulation; communication complexity; error statistics; wireless channels; BER; MIMO system; adaptive minimum transmit power modulation scheme; channel condition; computational complexity; constant data rate; fixed bit error rate; modulation order; multiple-input multiple-output system; optimal bit allocation adaptive modulation algorithm; spatial subchannel; transmit power allocation; wireless communication system; Adaptive systems; Bit error rate; Bit rate; Educational institutions; MIMO; Modulation; Wireless communication; Adaptive bit allocation; multiple-input multiple-output (MIMO);

fLanguage

English

Journal_Title

Communications and Networks, Journal of

Publisher

ieee

ISSN

1229-2370

Type

jour

DOI

10.1109/JCN.2007.6182832

Filename

6182832