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Browse Journals & Magazines > Communications, IEEE Transact ...> Volume:54 Issue:10 Help

Feedback-detection strategies for adaptive modulation systems

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2 Author(s)
Ekpenyong, A.E. ; Dept. of Electr. Eng., Notre Dame Univ., IN ; Yih-Fang Huang

This letter analyzes the performance of an adaptive modulation system, taking into account additive noise and fading on the feedback channel. It is shown that these feedback channel imperfections could significantly degrade the throughput gains of adaptive modulation over nonadaptive transmission. Specifically, feedback errors can result in an outage region in the low signal-to-noise ratio region. Two feedback receivers are proposed: one is based on the finite-state Markov channel model; and the other is a generalized Bayesian receiver. These receivers reduce the outage region due to feedback errors, and they can complement or be used as alternatives to error-control coding schemes

Published in:
Communications, IEEE Transactions on  (Volume:54 ,  Issue: 10 )

Date of Publication: Oct. 2006

Page(s):
1735 - 1740
ISSN :
0090-6778
INSPEC Accession Number:
9137937
Digital Object Identifier :
10.1109/TCOMM.2006.881352
Product Type:
Journals & Magazines
Date of Current Version :
16 October 2006
Issue Date :
Oct. 2006
Sponsored by :
IEEE Communications Society

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