Improved V-BLAST receiver for uplink CDM-OFDMA

Author

Zheng, Kan ; Zhao, Hui ; Wang, Wenbo ; Lei, Lei

Author_Institution

Wireless Signal Process. Lab., Beijing Univ. of Posts & Telecommun.

Volume

2

fYear

2005

fDate

11-14 Sept. 2005

Firstpage

1184

Abstract

This paper proposes a novel detection algorithm for multiple-input multiple-out (MIMO) code division multiplex-orthogonal frequency division multiplex access (CDM-OFDMA) system in the uplink. Vertical Bell Laboratories Layered Space-Time (V-BLAST) detection is processed only after despreading/combining at the receiver, which not only achieves good frequency diversity gain but also has low implementation complexity. Parallel interference cancellation (PIC) algorithm can also be applied to improve the performance of systems with heavy loads. Computer simulation demonstrates effectiveness of this detector and conclusion is followed

Keywords

MIMO systems; OFDM modulation; antenna arrays; code division multiplexing; diversity reception; frequency division multiple access; interference suppression; receivers; CDM-OFDMA; MIMO; PIC; V-BLAST; Vertical Bell Laboratories Layered Space-Time detection; code division multiplexing; frequency diversity; multiple-input multiple-output; orthogonal frequency division multiplex access system; parallel interference cancellation algorithm; receiver; Code division multiplexing; Detectors; Frequency diversity; Interference cancellation; MIMO; Mobile communication; Receiving antennas; Signal processing algorithms; System performance; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on

Conference_Location

Berlin

Print_ISBN

9.7838007291e+012

Type

conf

DOI

10.1109/PIMRC.2005.1651628

Filename

1651628