A simplified adaptive modulation scheme for D-STTD systems with linear receivers

Author

Ham, Jaesang ; Shim, Seijoon ; Kim, Kyeongyeon ; Lee, Chungyong

Author_Institution

Dept. of Electr. Eng, Yonsei Univ., Seoul, South Korea

Volume

9

Issue

12

fYear

2005

Firstpage

1049

Lastpage

1051

Abstract

In this letter, we consider D-STTD (Double Space Time Transmit Diversity) with an adaptive modulation (AM) scheme. The simple criteria for AM are proposed according to linear receivers and the corresponding AM schemes are derived to minimize bit error rate under the constraint of the total data rate and total transmit power. The D-STTD system using the proposed AM scheme requires low computational complexity and small feedback information. The performance of D-STTD system using the proposed scheme is improved by 7 dB or more in signal to noise ratio corresponding to 10^-4 bit error rate.

Keywords

adaptive modulation; block codes; diversity reception; error statistics; modulation coding; receiving antennas; space-time codes; D-STTD; STBC; adaptive modulation scheme; bit error rate; double space time transmit diversity; linear receiver; space-time block code; AWGN; Bit error rate; Channel estimation; Computational complexity; Feedback; Information technology; MIMO; Receiving antennas; Transmitters; Transmitting antennas;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2005.1576584

Filename

1576584