NDLI: Scaled Selection Combining Based Cooperative Diversity System With Decode and Forward Relaying

Content Provider	IEEE Xplore Digital Library
Author	Selvaraj, M.D. Mallik, R.K.
Copyright Year	1967
Abstract	Consider a cooperative diversity network that consists of a source, cooperating relays, and a destination. The relays cooperate with the source through the decode and forward protocol to transmit a data symbol from the source to the destination. In a conventional signal-to-noise ratio based selection combining scheme at the destination, the effect of the source-to-relay links is not accounted for when choosing one link from the set consisting of the source-to-destination and relay-to-destination links. To overcome this drawback, we modify the conventional scheme by including, in the selection process, a deterministic scale factor that incorporates the effect of the source-to-relay links. For statistically independent links that undergo flat Rayleigh fading, we derive, in closed form, the exact end-to-end symbol error probability (SEP) of this modified scheme, which we call a scaled selection combining scheme for M-ary phase-shift keying constellation. We also give a method of obtaining the optimum scale factor that minimizes the end-to-end SEP. A system designer should select the optimum scale factor to achieve the best performance of the scheme.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	4388
Ending Page	4399
Page Count	12
File Size	369763
File Format	PDF
ISSN	00189545
Volume Number	59
Issue Number	9
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Diversity reception Decoding Relays Protocols Rayleigh channels Mobile antennas Error probability Permission Postal services Radio access networks symbol error probability (SEP) Binary phase-shift keying (BPSK) cooperative diversity decode and forward (DF) protocol $M$-ary phase-shift keying (MPSK) Rayleigh fading scaled selection combining
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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