A Low Complexity Scheme for Transmit Diversity Over Frequency Selective Channels

Author

Xiao, Pei ; Sellathurai, Mathini ; Ratnarajah, Tharm

Author_Institution

Queen´´s Univ., Belfast

fYear

2007

fDate

26-30 Nov. 2007

Firstpage

4086

Lastpage

4090

Abstract

A low complexity transmit diversity scheme is derived in this paper in order to overcome the prohibitive complexity imposed by the maximum likelihood detection for the systems with space-time block code (STBC) over frequency selective channels. By taking advantage of multipath propagation and exploiting temporal diversity gain, the proposed turbo equalization algorithm significantly improves the system performance compared to the original Alamouti algorithm as well as the conventional minimum mean square error (MMSE) detection scheme.

Keywords

block codes; diversity reception; least mean squares methods; maximum likelihood detection; multipath channels; space-time codes; turbo codes; Alamouti algorithm; frequency selective channel; low complexity transmit diversity scheme; maximum likelihood detection; minimum mean square error detection; multipath propagation; space-time block code; turbo equalization algorithm; Block codes; Convolutional codes; Equalizers; Frequency diversity; Hydrogen; Intersymbol interference; MIMO; Maximum likelihood detection; Receiving antennas; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE

Conference_Location

Washington, DC

Print_ISBN

978-1-4244-1042-2

Electronic_ISBN

978-1-4244-1043-9

Type

conf

DOI

10.1109/GLOCOM.2007.777

Filename

4411687