NDLI: Dynamic Code Allocation for Constructive Interference Exploitation in DS-CDMA Systems

Content Provider	IEEE Xplore Digital Library
Author	Alsusa, E. Masouros, C. Rico, U.P.
Copyright Year	2008
Description	Author affiliation: Sch. of Electr. & Electron. Eng., Univ. of Manchester, Manchester (Alsusa, E.; Masouros, C.; Rico, U.P.)
Abstract	In this paper a new dynamic code distribution technique is presented. This method chooses the optimal code-to-user allocation for transmission between different combinations of the available signature waveforms according to the data to be transmitted at every symbol period by the base station (BS) at the downlink of a cellular code division multiple access (CDMA) system. The selection is done with the aim to minimise the destructive and maximize constructive interference between users. This effectively spreads the signal constellation and enhances the signal to interference-plus-noise ratio (SINR) at the receiver with no additional power-per-user investment. However, the trade-off to this is some extra side information. Theoretical analysis and simulations presented suggest that this method can provide a bit error rate reduction of an order of a magnitude when combined with multiuser detection.
Starting Page	871
Ending Page	875
File Size	261901
Page Count	5
File Format	PDF
ISBN	9781424420759
DOI	10.1109/ICC.2008.171
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Multiaccess communication Base stations Downlink Constellation diagram Signal to noise ratio Investments Analytical models Bit error rate Multiuser detection
Content Type	Text
Resource Type	Article

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