Superposition Coding for Downlink Underwater Acoustic OFDM
IEEE Journal of Oceanic Engineering(2017)
摘要
Superposition coding (SC) is a nonorthogonal scheme for downlink communications, in which all users are allowed to use the full degrees of freedom of the channel and successive interference cancellation (SIC) is adopted for user decoding. Combining SC with orthogonal frequency-division multiplexing (OFDM) modulation, the optimal resource allocation depends on the perfect channel state information ...
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关键词
OFDM,Downlink,Transmitters,Encoding,Resource management,Channel estimation,Silicon carbide
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