Orthogonal decode and forward relaying with improved spectral efficiency

Cooperative relay communications can significantly improve the reliability of data transmission over wireless fading channels by implementing spatial diversity in a distributed fashion. Orthogonal decode and forward (ODF) relaying achieves maximum diversity provided by the source-destination and rel...

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Veröffentlicht in:	IEEE communications letters 2009-02, Vol.13 (2), p.109-111
Hauptverfasser:	Srinivas, K., Giridhar, K., Koilpillai, R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Access methods and protocols, osi model Applied sciences Channels Cooperative relaying Data communication Decoding Digital relays diversity Diversity methods Error analysis Error probability Exact sciences and technology Fading Forward contracts Gain Interchannel interference Protocols Relay Relaying rotated constellations Simulation Spectra Symbols Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Teleprocessing networks. Isdn Transmission and modulation (techniques and equipments)
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Zusammenfassung:	Cooperative relay communications can significantly improve the reliability of data transmission over wireless fading channels by implementing spatial diversity in a distributed fashion. Orthogonal decode and forward (ODF) relaying achieves maximum diversity provided by the source-destination and relay destination channels, but suffers from low spectral efficiency. We propose a novel ODF protocol having higher spectral efficiency without sacrificing the diversity gain. We analyze the symbol error probability of the proposed protocol and also present simulation results.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2009.081511