A Simple Layered Space-Time Block Nulling Technique for DSTTD Systems

Author

Lee, Yinman ; Shieh, Hong-Wei

Author_Institution

Dept. of Electr. Eng., Nat. Chi Nan Univ., Nantou, Taiwan

Volume

15

Issue

12

fYear

2011

fDate

12/1/2011 12:00:00 AM

Firstpage

1323

Lastpage

1325

Abstract

A double space-time transmit diversity (DSTTD) system employs four transmit antennas to multiplex two Alamouti space-time block code (STBC) units. In this letter, a specially-designed canceling mechanism is presented, which can efficiently separate the two STBC units for such systems. We show that the orthogonal structure, and so the merit of Alamouti STBC, can be kept. Compared with some previous interference cancelation methods, the proposed one requires much fewer floating-point operations (flops) while achieving similar error-rate performance.

Keywords

MIMO communication; interference suppression; space-time block codes; transmitting antennas; Alamouti STBC; DSTTD systems; STBC units; canceling mechanism; double space-time transmit diversity system; error-rate performance; floating-point operations; flops; interference cancelation methods; multiplex two Alamouti space-time block code; orthogonal structure; simple layered space-time block nulling technique; transmit antennas; Bit error rate; Computational complexity; Decoding; Integrated circuits; Receiving antennas; Signal to noise ratio; DSTTD; MIMO; layered space-time interference cancelation;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.101211.111570

Filename

6064856