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- W1989284244 abstract "In this paper, we introduce an adaptive cooperative system that selects the best relay among the available relay nodes to cooperate with a source node for transmitting the information signal to a destination node if the spectral efficiency can be maximized. This maximization is achieved as long as the average bit error rate is below a target level. The channels are modeled as independent and identically distributed Rayleigh fading channels over the relay nodes, and not identically distributed over the relay hops. Closed-form expressions for the average spectral efficiency and the average bit error rate are derived when adaptive discrete rate M-QAM is used as a practical implementation of the variable-rate transmission. Simulation results show that the proposed scheme, compared with the opportunistic amplify-and-forward fixed relaying and the conventional direct transmission, can provide the maximum average spectral efficiency and perfectly maintain the average bit error rate." @default.
- W1989284244 created "2016-06-24" @default.
- W1989284244 creator A5022748103 @default.
- W1989284244 creator A5073217469 @default.
- W1989284244 date "2011-12-01" @default.
- W1989284244 modified "2023-09-25" @default.
- W1989284244 title "Spectrally Efficient Variable-Rate Best-Relay Selection Scheme for Adaptive Cooperative System" @default.
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- W1989284244 doi "https://doi.org/10.1109/glocom.2011.6134302" @default.
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