NDLI: Advanced hybrid ARQ technique employing a signal constellation rearrangement

Content Provider	IEEE Xplore Digital Library
Author	Wengerter, C. von Elbwart, A.G.E. Seidel, E. Velev, G. Schmitt, M.P.
Copyright Year	2002
Description	Author affiliation: MCOM - Mobile Radio Network, Panasonic Eur. Labs., Langen, Germany (Wengerter, C.; von Elbwart, A.G.E.; Seidel, E.; Velev, G.; Schmitt, M.P.)
Abstract	This paper presents an advanced hybrid ARQ technique applicable to QAM multilevel modulation formats together with type II hybrid ARQ (automatic repeat request) schemes, in which at least part of the initially transmitted bits is repeated in retransmissions. The presented technique averages over retransmissions the variations in bit reliabilities caused by the signal constellation of multilevel modulation formats to improve decoding performance. It is shown that by rearranging the signal constellation for retransmissions a significant gain in hybrid ARQ performance is achieved with only a marginal increase in complexity.
Starting Page	2002
Ending Page	2006
File Size	321363
Page Count	5
File Format	PDF
ISBN	0780374673
ISSN	10903038
DOI	10.1109/VETECF.2002.1040569
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic repeat request Constellation diagram Quadrature amplitude modulation Redundancy Decoding Turbo codes Forward error correction Signal mapping Land mobile radio Performance gain
Content Type	Text
Resource Type	Article

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