Title :
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
fDate :
June 28 2009-July 3 2009
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;
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
DOI :
10.1109/ISIT.2009.5206487
