NDLI: Minimum conditional probability of error detection for MC-CDMA

Content Provider	IEEE Xplore Digital Library
Author	Dayal, P. Desai, U.B. Mahanta, A.
Copyright Year	2004
Description	Author affiliation: IIT, Guwahati, India (Dayal, P.)
Abstract	Multi-carrier code division multiple access (MC-CDMA) is an attractive choice for high speed wireless communication as it mitigates the problem of intersymbol interference (ISI) and also exploits frequency diversity. The data stream in MC-CDMA is spread using a user specific spreading sequence in the frequency domain and every chip travels on a different sub-carrier. At the receiver, the different sub-carriers have to be combined properly to form the decision variable. Minimum mean square error (MMSE) detection is a popular choice for this, but as it tries to minimize the mean square error (MSE) and not the bit error rate (BER), the BER it attains is not optimum. We propose a minimum probability of error (MPOE) based linear multiuser detector, which tries to minimize the probability of error. A minimum conditional probability of error (MCPOE) detector is introduced for reducing the computational complexity of the MPOE detector. Theoretical and simulation results are presented for the MCPOE and MPOE detector and it can be seen that the MPOE detector outperforms the MMSE detector.
Starting Page	51
Ending Page	55
File Size	510763
Page Count	5
File Format	PDF
ISBN	0780384083
DOI	10.1109/ISSSTA.2004.1371662
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-08-30
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multicarrier code division multiple access Detectors Bit error rate Intersymbol interference Mean square error methods Wireless communication Frequency diversity Frequency domain analysis Computational complexity Computational modeling
Content Type	Text
Resource Type	Article

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