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- W4300538146 abstract "Index coded PSK modulation over an AWGN broadcast channel, for a given index coding problem (ICP) is studied. For a chosen index code and an arbitrary mapping (of broadcast vectors to PSK signal points), we have derived a decision rule for the maximum likelihood (ML) decoder. The message error performance of a receiver at high SNR is characterized by a parameter called PSK Index Coding Gain (PSK-ICG). The PSK-ICG of a receiver is determined by a metric called minimum inter-set distance. For a given ICP with an order of priority among the receivers, and a chosen $2^N$-PSK constellation we propose an algorithm to find (index code, mapping) pairs, each of which gives the best performance in terms of PSK-ICG of the receivers. No other pair of index code (of length $N$ with $2^N$ broadcast vectors) and mapping can give a better PSK-ICG for the highest priority receiver. Also, given that the highest priority receiver achieves its best performance, the next highest priority receiver achieves its maximum gain possible and so on in the specified order or priority." @default.
- W4300538146 created "2022-10-03" @default.
- W4300538146 creator A5015398340 @default.
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- W4300538146 date "2017-03-09" @default.
- W4300538146 modified "2023-10-18" @default.
- W4300538146 title "Maximum Likelihood Decoder for Index Coded PSK Modulation for Priority Ordered Receivers" @default.
- W4300538146 doi "https://doi.org/10.48550/arxiv.1703.03222" @default.
- W4300538146 hasPublicationYear "2017" @default.
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