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Title:

Probabilistic Signal Shaping for Bit-Metric Decoding

Document type:
Konferenzbeitrag
Contribution type:
Textbeitrag / Aufsatz
Author(s):
Böcherer, G.
Abstract:
A scheme is proposed that combines probabilistic signal shaping with bit-metric decoding. The transmitter generates symbols according to a distribution on the channel input alphabet. The symbols are labeled by bit strings. At the receiver, the channel output is decoded with respect to a bit-metric. An achievable rate is derived using random coding arguments. For the 8-ASK AWGN channel, numerical results show that at a spectral efficiency of 2 bits/s/Hz, the new scheme outperforms bit-interleaved...     »
Book / Congress title:
IEEE Int. Symp. Inf. Theory
Year:
2014
Month:
Jun
Reviewed:
ja
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