DocumentCode
1510956
Title
Capacity-Approaching Signal Constellations for the Additive Exponential Noise Channel
Author
Le Goff, Stéphane Y. ; Ding, Zhiguo
Author_Institution
Sch. of Electr. & Electron. Eng., Newcastle Univ., Newcastle upon Tyne, UK
Volume
1
Issue
4
fYear
2012
fDate
8/1/2012 12:00:00 AM
Firstpage
320
Lastpage
323
Abstract
We present a new family of signal constellations, called log constellations, that can be used to design near-capacity coded modulation schemes over additive exponential noise (AEN) channels. Log constellations are designed by geometrically approximating the input distribution that maximizes the AEN channel capacity. The mutual information achievable over AEN channels with both coded modulation (CM) and bit-interleaved coded modulation (BICM) approaches is evaluated for various signal sets via computer simulations.
Keywords
AWGN channels; channel capacity; interference suppression; interleaved codes; modulation coding; AEN channel capacity; BICM; additive exponential noise channel; bit-interleaved coded modulation; capacity-approaching signal constellation; computer simulation; log constellation; near-capacity coded modulation scheme; signal sets; Additives; Channel capacity; Constellation diagram; Mutual information; Signal to noise ratio; AEN channels; BICM; modulation constellation;
fLanguage
English
Journal_Title
Wireless Communications Letters, IEEE
Publisher
ieee
ISSN
2162-2337
Type
jour
DOI
10.1109/WCL.2012.050112.120058
Filename
6196163
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