Soft-decision-and-forward protocol for cooperative communication networks based on Alamouti code

Author

Dong-Joon Shin ; Kyoung-Young Song ; Jong-Seon No

Author_Institution

Dept. of ECE, Hanyang Univ., Seoul, South Korea

fYear

2009

fDate

June 28 2009-July 3 2009

Firstpage

1016

Lastpage

1019

Abstract

A cooperative protocol called soft-decision-and-forward (SDF) is introduced. SDF protocol exploits the soft decision values of the received signal at the relay node. Alamouti code is used for orthogonal transmission and distributed space-time codes are designed for non-orthogonal transmission. The maximum likelihood decoders with low decoding complexity are proposed. From simulations, it can be seen that SDF protocol outperforms AF protocol.

Keywords

maximum likelihood decoding; orthogonal codes; protocols; radiocommunication; space-time codes; SDF; alamouti code; cooperative communication network; distributed space-time code; low decoding complexity; maximum likelihood decoder; nonorthogonal transmission; orthogonal transmission; soft-decision-and-forward protocol; wireless communication system; Communication networks; Fading; Maximum likelihood decoding; Protocols; Radio frequency; Relays; Research and development; Transmitting antennas; Wireless communication; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 2009. ISIT 2009. IEEE International Symposium on

Conference_Location

Seoul

Print_ISBN

978-1-4244-4312-3

Electronic_ISBN

978-1-4244-4313-0

Type

conf

DOI

10.1109/ISIT.2009.5206487

Filename

5206487