Channel Coding Diversity with Mismatched Decoding Metrics

We analyze the performance of channel coding diversity with general decoding metrics in terms of the generalized mutual information (GMI). We show that the GMI of the diversity channel is less than or equal to the baud-rate weighted sum of the component GMIs; and equality is achieved only in special...

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Vydané v:	IEEE communications letters Ročník 15; číslo 9; s. 916 - 918
Hlavní autori:	Nguyen, T. T., Lampe, L.
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	New York, NY IEEE 01.09.2011 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:	Applied sciences bit-interleaved coded modulation (BICM) Channel coding Channel coding diversity Channels Charge coupled devices Coding Coding, codes Decoding Detectors Exact sciences and technology generalized mutual information (GMI) Information, signal and communications theory Measurement mismatched decoding Modulation Modulation, demodulation Optical telecommunications Radio frequency Signal and communications theory symbol-by-symbol (SBS) decoding Telecommunications Telecommunications and information theory Wireless optical communications Performance evaluation Optical telecommunication Wireless telecommunication Decoding generalized mutual information (GMI) Radiofrequency Channel coding Mismatching Free space propagation Modulation bit-interleaved coded modulation (BICM) Interleaved codes Metric Free space optics Channel coding diversity mismatched decoding Mutual information Radio communication symbol-by-symbol (SBS) decoding
ISSN:	1089-7798, 1558-2558
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Popis
Shrnutí:	We analyze the performance of channel coding diversity with general decoding metrics in terms of the generalized mutual information (GMI). We show that the GMI of the diversity channel is less than or equal to the baud-rate weighted sum of the component GMIs; and equality is achieved only in special cases. We then focus on bit-interleaved coded modulation (BICM) schemes and demonstrate the applicability of our findings by an example of hybrid free-space optical and radio-frequency (FSO-RF) communication.
Bibliografia:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2011.071311.111110