Performance Analysis of a Multi-Relay Cooperative Diversity Network with Decode and Forward Relaying
Abstract
Consider a multi-relay cooperative
diversity network consisting of a source, N relays,
and a destination. For the transmission of a data
symbol from the source to the destination, the re-
lays cooperate with the source through the decode
and forward protocol. All the links are statisti-
cally independent and undergo flat Rayleigh fad-
ing. Conventional instantaneous signal-to-noise
ratio based selection combining at the destina-
tion chooses one link from the set consisting of
the source-to-destination link and the N relay-to-
destination links. However, this scheme does not
account for the effect of the source-to-relay links
in the error performance. To overcome this draw-
back, we present here a scaled selection combining
scheme, which accounts for this effect through a
deterministic scale factor. The end-to-end symbol
error probability (SEP) of this scheme with binary
phase-shift keying is derived in closed form. We
also give a method of obtaining the optimum scale
factor that minimizes the end-to-end SEP.
Description
2010 National Conference on Communications (NCC)
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Conference Paper
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Keywords
BINARY PHASE-SHIFT KEYING (BPSK), DECODE-AND-FORWARD (DF) PROTOCOL, RAYLEIGH FADING, SYMBOL ERROR PROBABILITY (SEP), SCALED SELECTION COMBINING, SIGNAL TRANSMISSION, RECEPTION DIVERSITY, SIGNAL DETECTORS, ERROR ANALYSIS
Citation
Selvaraj, M. D., & Mallik, R. K. (2010). Performance Analysis of a Multi-Relay Cooperative Diversity Network with Decode and Forward Relaying. Proceedings of the 2010 National Conference on Communications (NCC), Chennai, IND. (p. 1-5). IEEE. doi:10.1109/NCC.2010.5430227