A distributed differential space-time coding scheme for two-way wireless relay networks

We propose a distributed differential space-time coding scheme for two-way relaying over unknown block Rayleigh fading channels. The accent is on a two-time slots scheme, where in the first stage both terminals transmit their signals to the relays and in the second stage the relays broadcast to the...

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Veröffentlicht in:2009 IEEE International Symposium on Information Theory S. 779 - 783
Hauptverfasser: Utkovski, Z., Yammine, G., Lindner, J.
Format: Tagungsbericht
Sprache:Englisch
Veröffentlicht: IEEE 01.06.2009
Schlagworte:
Ad hoc networks
Bidirectional control
Broadcasting
Decoding
Fading
Information technology
Network coding
Performance analysis
Protocols
Relays
ISBN:9781424443123, 1424443121
ISSN:2157-8095
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Zusammenfassung:We propose a distributed differential space-time coding scheme for two-way relaying over unknown block Rayleigh fading channels. The accent is on a two-time slots scheme, where in the first stage both terminals transmit their signals to the relays and in the second stage the relays broadcast to the terminals. Although we do not assume channel knowledge neither at the relays nor at the terminals, we show that it is possible for the terminals to subtract their contribution from the broadcasted signal and decide on the desired signal from the other terminal. The performance analysis reveals that the two-time slots differential scheme offers advantage over the traditional four-time slots differential scheme.
ISBN:9781424443123
1424443121
ISSN:2157-8095
DOI:10.1109/ISIT.2009.5205644