NDLI: On the capacity and asymptotic performance of MC-CDMA system over Nakagami-m fading channels

Content Provider	IEEE Xplore Digital Library
Author	Zhengjiu Kang Kung Yao
Copyright Year	2004
Description	Author affiliation: Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA (Zhengjiu Kang; Kung Yao)
Abstract	The ergodic channel capacity of an MC-CDMA system in the presence of frequency-selective Nakagami-m fading is studied. The channel information is unknown at the transmitter and perfectly known at the receiver. It is seen that a multipath channel may have an advantage or disadvantage for its inherent diversity in the sense of ergodicity, depending on the value of fading parameter, m. Especially, it has no advantage or disadvantage for its inherent diversity in the presence of Rayleigh fading. In the case of a constant multipath intensity profile, when the number of multipaths becomes large, the ergodic capacity approaches the one for the Rayleigh fading channel. In addition to the information theoretic considerations, the asymptotic BER performance for MC-CDMA systems with MMSE reception over Nakagami-m fading channels in terms of the fading parameter, m, the number of multipaths, L, and the average power decay rate, /spl delta/, is also studied. The closed-form expression is also obtained for asymptotic signal-to-interference-plus-noise when the frequency domain channel fading parameter takes on integer values.
Starting Page	1153
Ending Page	1157
File Size	314632
Page Count	5
File Format	PDF
ISBN	0780382552
ISSN	15502252
DOI	10.1109/VETECS.2004.1389013
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-05-17
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multicarrier code division multiple access Fading Rayleigh channels OFDM Channel capacity Multiaccess communication Bit error rate Multipath channels Frequency domain analysis MIMO
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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