Diversity multiplexing trade-off for opportunistic multiple access relay channel

Author

Abouelseoud, Mohamed ; Nosratinia, Aria

Author_Institution

Dept. of Electr. Eng., Univ. of Texas at Dallas, Richardson, TX

fYear

2008

fDate

26-29 Oct. 2008

Firstpage

1489

Lastpage

1493

Abstract

This work studies the multiple access relay channel (MARC), specifically it explores the effect of multiuser diversity on the diversity multiplexing trade-off (DMT) performance of the MARC. A new opportunistic channel access communication scheme is proposed where the user selection depends only on the source-destination channels coefficients. This is proven to be DMT optimal. Both non-orthogonal and orthogonal relay transmission are studied under various cooperation protocols. This work does not assume CSI at the transmitters and assumes only 1-bit feedback from the destination to the sources.

Keywords

MIMO communication; antenna arrays; multiplexing; multiuser channels; protocols; transmitting antennas; channel access communication; cooperation protocols; diversity multiplexing trade-off; feedback; multiple access relay channel; nonorthogonal relay transmission; opportunistic relay channel; orthogonal relay transmission; source-destination channels coefficients; transmitters; AWGN; Access protocols; Decoding; Fading; Feedback; OFDM modulation; Relays; Resource management; Transmitters; Upper bound;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2008 42nd Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

978-1-4244-2940-0

Electronic_ISBN

1058-6393

Type

conf

DOI

10.1109/ACSSC.2008.5074669

Filename

5074669