Space-time spreading codes for a multiuser MIMO system

Author

Doostnejad, Roya ; Lim, Teng Joon ; Sousa, Elvino S.

Author_Institution

Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada

Volume

2

fYear

2002

fDate

3-6 Nov. 2002

Firstpage

1374

Abstract

We study the use of the spatial dimension in enabling multiple access for the down-link of a cellular communication system and propose a two dimensional spreading code. By using a minimum number of transmit and receive antennas, the bandwidth efficiency is increased over a single antenna system, while diversity is provided at the receiver. A key feature of the proposed technique is that it simplifies the implementation of joint space-time decoding and multiuser detection in each user station. It is supposed that the channel is known only at the receiver.

Keywords

MIMO systems; cellular radio; decoding; diversity reception; matrix algebra; multi-access systems; multiuser detection; space-time codes; 2D spreading code; bandwidth efficiency; cellular communication system; diversity reception; multiple access; multiuser MIMO system; multiuser detection; receive antennas; space-time codes; space-time decoding; space-time spreading codes; space-time spreading matrix; transmit antennas; two dimensional spreading code; Channel coding; Decoding; Diversity methods; Educational institutions; MIMO; Multiaccess communication; Multiuser detection; Receiving antennas; Speech; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2002. Conference Record of the Thirty-Sixth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-7576-9

Type

conf

DOI

10.1109/ACSSC.2002.1197004

Filename

1197004