NDLI: Comparison of fading channel capacity under different CSI assumptions

Content Provider	IEEE Xplore Digital Library
Author	Alouini, M.-S. Goldsmith, A.J.
Copyright Year	2000
Description	Author affiliation: Dept. of Electr. & Comput. Eng., Minnesota Univ., Minneapolis, MN, USA (Alouini, M.-S.)
Abstract	This paper explores the relationship between the ergodic fading channel capacity with transmitter and receiver channel state information (CSI), the ergodic fading channel capacity with receiver CSI only, and the zero outage capacity. In particular, we obtain general order relations for these different capacity definitions and also compare them to the capacity of an additive white Gaussian noise channel (AWGN) channel with the same average signal-to-noise ratio (SNR). We determine conditions under which transmitter CSI significantly increases ergodic capacity, and we show that the ergodic capacity of a fading channel can exceed the capacity of an AWGN channel with the same average SNR. We also discuss the relative difference between the capacity of fading channels with transmitter and receiver CSI versus the capacity with receiver CSI only. We show that while this difference is negligible on a Nakagami fading channel it might be relatively significant on a two-state Nakagami fading channel. We also discuss the implications of this work for practical coding schemes.
Starting Page	1844
Ending Page	1849
File Size	534540
Page Count	6
File Format	PDF
ISBN	0780365070
ISSN	10903038
DOI	10.1109/VETECF.2000.886138
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-24
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fading Channel capacity Transmitters Signal to noise ratio AWGN channels Delay Information rates Channel state information Additive white noise Postal services
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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