On the performance of cooperative diversity protocols in practical wireless systems

Author

Zimmermann, Ernesto ; Herhold, Patrick ; Fettweis, Gerhard

Author_Institution

Vodafone Chair Mobile Commun. Syst., Technische Univ. Dresden, Germany

Volume

4

fYear

2003

fDate

6-9 Oct. 2003

Firstpage

2212

Abstract

The concepts of cooperative diversity promise to offer the benefits of spatial diversity gains to handheld wireless devices with single antennas. The information-theoretic bounds that have been established recently serve as basic guidelines; yet, the performance of such protocols should additionally be examined for more realistic assumptions. Towards this end, we study cooperative diversity protocols for systems employing limited modulation alphabets and realistic receiver structures regarding the knowledge of channel state information. Our findings imply that under these conditions full second order diversity can only be achieved by using adaptive versions of cooperative protocols. As with other diversity schemes (e.g. space time block codes), our results for uncoded transmission can easily be combined with FEC techniques to obtain excellent error rate performance.

Keywords

antennas; diversity reception; error statistics; forward error correction; protocols; radio receivers; FEC technique; adaptive cooperative diversity protocol; channel state information; error rate performance; information-theoretic bound; limited modulation alphabet; practical handheld wireless device; receiver structure; second order spatial diversity gain; single antenna; uncoded transmission; Broadcasting; Channel state information; Decoding; Diversity methods; Frequency diversity; Guidelines; Mobile antennas; Mobile communication; Relays; Wireless application protocol;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th

ISSN

1090-3038

Print_ISBN

0-7803-7954-3

Type

conf

DOI

10.1109/VETECF.2003.1285922

Filename

1285922