NDLI: Adaptive modulation and coding with multicodes over Nakagami fading channels

Content Provider	IEEE Xplore Digital Library
Author	Kwan, R. Leung, C.
Copyright Year	2005
Description	Author affiliation: Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada (Kwan, R.; Leung, C.)
Abstract	Adaptive modulation and coding (AMC) has been adopted in the 3GPP standard in order to improve spectral efficiency. In order to increase the granularity of the adaptation and to provide higher bit rates, multicode transmission is employed. Since the use of AMC requires knowledge of the channel state, the accuracy of this information is important. In practice, errors in estimating the channel state are inevitable, resulting in performance degradation. The average bit rate performance of AMC with multicodes is studied for a CDMA system experiencing Nakagami fading and channel estimation errors. The results are obtained in terms of the generalized Marcum Q-function. Numerical results are provided to illustrate the performance degradations due to inaccuracies in estimating the channel.
Starting Page	927
Ending Page	932
File Size	1919174
Page Count	6
File Format	PDF
ISBN	0780389662
ISSN	15253511
DOI	10.1109/WCNC.2005.1424632
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-03-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Modulation coding Fading Bit rate Multiaccess communication Channel estimation Downlink Quadrature amplitude modulation Error analysis Telecommunication traffic Degradation
Content Type	Text
Resource Type	Article

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