NDLI: Distance-Optimal Oversaturated CDMA Signature Ensemble

Content Provider	IEEE Xplore Digital Library
Author	Paavola, J. Ipatov, V.
Copyright Year	2007
Description	Author affiliation: Univ. of Turku, Turku (Paavola, J.; Ipatov, V.)
Abstract	A method of increasing the capacity of synchronous DS-CDMA beyond the signal space dimension is called oversaturation. When the number of users exceeds the signal space dimension, it does not in principle prohibit the maximization of minimum Euclidean distance between the points of a group signal constellation up to the optimum achieved with orthogonal users' signatures. Previously reported construction of distance-optimal signature ensembles was limited to only signal space dimensions equal to the natural power of four. This paper presents a generalization of such a method to arbitrary signal space dimensions. Necessary condition of presenting binary antipodal alphabet in the oversaturated ensembles of this kind is also discussed.
Starting Page	480
Ending Page	484
File Size	226415
Page Count	5
File Format	PDF
ISBN	9781424409785
DOI	10.1109/ISWCS.2007.4392386
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-10-17
Publisher Place	Norway
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless communication Space technology 3G mobile communication Bandwidth Multiple access interference Signal processing Downlink Time division multiplexing Multiaccess communication Frequency synchronization
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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