Presentation 2005/2/24
Theoretical Performance Analysis of Downlink Site Diversity in an MC-CDMA Cellular System
Arny ALI, Takamichi INOUE, Fumiyuki ADACHI,
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Abstract(in English) The downlink (base-to-mobile) bit error rate (BER) performance for a mobile user with relatively weak received signal in a multicarrier-CDMA (MC-CDMA) cellular system can be improved by utilizing the site diversity reception. With joint use of MMSE-based frequency domain equalization (FDE) and antenna diversity combining, the site diversity operation will increase the downlink capacity. In this paper, an expression for the theoretical conditional BER for the given set of channel gains is derived based on Gaussian approximation of the interference components. The local average BER is then obtained by averaging the conditional BER over the given set of channel gains using Monte-Carlo numerical method. The outage probability is measured from the numerically obtained cumulative distribution of the local average BER to determine the downlink capacity. Results from theoretical computation are compared to the results from computer simulation and discussed.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) MC-CDMA / site diversity / downlink capacity / outage probability / MMSE-based FDE / antenna diversity
Paper # WBS2004-106,A・P2004-287,RCS2004-374,MoMuC2004-157,MW2004-284
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Committee MoMuC
Conference Date 2005/2/24(1days)
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Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Theoretical Performance Analysis of Downlink Site Diversity in an MC-CDMA Cellular System
Sub Title (in English)
Keyword(1) MC-CDMA
Keyword(2) site diversity
Keyword(3) downlink capacity
Keyword(4) outage probability
Keyword(5) MMSE-based FDE
Keyword(6) antenna diversity
1st Author's Name Arny ALI
1st Author's Affiliation Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University()
2nd Author's Name Takamichi INOUE
2nd Author's Affiliation Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University
3rd Author's Name Fumiyuki ADACHI
3rd Author's Affiliation Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University
Date 2005/2/24
Paper # WBS2004-106,A・P2004-287,RCS2004-374,MoMuC2004-157,MW2004-284
Volume (vol) vol.104
Number (no) 682
Page pp.pp.-
#Pages 6
Date of Issue