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In this paper, we propose a simple network coded cooperation using non-binary modulation such as ternary phase shift keying (TPSK), which achieves high power and bandwidth efficiency compared with binary phase shift keying (BPSK). We investigate the encoder design based on serially concatenated convolutional codes (SCCC) and a simple network coding. Also, we study the appropriate decoders to exploit...
In this correspondence, we investigate a selective relay spectrum sensing and best relay data transmission (SRSS-BRDT) scheme for multiple-relay cognitive radio networks. Specifically, in the spectrum sensing phase, only selected cognitive relays are utilized to transmit/forward their initial detection results (without a dedicated sensing relay channel) to a cognitive source for fusion, where the...
Cooperative communication enables distributed terminals with a single antenna to form a virtual multiple antenna system and benefits from diversity. In this paper quasi-cyclic LDPC codes are applied to both amplify-and-forward cooperative scheme and decode-and-forward scheme over Rayleigh fading half-duplex relay channel. Simulation results show excellent performance of quasi-cyclic LDPC codes with...
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