Block differential space-time modulation with decision-feedback detection in Rayleigh fading

Author

Du, Zheng ; Beaulieu, Norman C.

Author_Institution

Dept. of Electr. & Comput. Eng., Alberta Univ., Edmonton, Alta.

Volume

5

fYear

2005

fDate

2-2 Dec. 2005

Lastpage

3037

Abstract

Time variation on fading channels hinders accurate channel estimation in differential space-time modulation and deteriorates the performance. Decision-feedback differential detection is considered for block differential space-time modulation and compared with conventional differential space-time modulation. It is observed that the proposed scheme does not suffer effective fading bandwidth expansion as does the conventional scheme. An improved effective signal-to-noise ratio approach is proposed for analyzing the performance of the system. Theoretical analysis and simulation show the improved performance of the proposed scheme over the conventional scheme

Keywords

Rayleigh channels; bandwidth allocation; block codes; channel estimation; modulation; space-time codes; Rayleigh fading; block differential space-time modulation; channel estimation; decision-feedback detection; fading channels; signal-to-noise ratio approach; AWGN; Bandwidth; Channel estimation; Fading; Performance analysis; Rayleigh channels; Receiving antennas; Signal to noise ratio; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE

Conference_Location

St. Louis, MO

Print_ISBN

0-7803-9414-3

Type

conf

DOI

10.1109/GLOCOM.2005.1578314

Filename

1578314