Noise Based PSK CDMA System for Secure Communications

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dc.contributor.author Berber, Stevan en
dc.contributor.author Kovacevic, V en
dc.contributor.author Temerinac, M en
dc.coverage.spatial Belgrade en
dc.date.accessioned 2017-08-03T00:13:18Z en
dc.date.issued 2011-10-06 en
dc.identifier.citation 4th International Scientific Conference OTEH 2011, Belgrade, 06 Oct 2011 - 07 Oct 2011. 1-6 (6 pages). 06 Oct 2011 en
dc.identifier.uri http://hdl.handle.net/2292/34725 en
dc.description.abstract This paper presents the operation of a code division multiple access (CDMA) system that is based on application of random Gaussian spreading sequences. The system is presented in the form of a block schematic and the expressions for input–output signals are used to demonstrate the procedures of deriving bit error rate (BER) of the system and finding the capacity of the channel. The expressions for BER are analyzed for the cases when additive white Gaussian noise and fading are present in the channel. Due to the same statistical characteristics of the spreading sequences and the noise that represents the channel, the system is called Noise Based Phase Shift Keying (NBPSK) CDMA system. Because the transmitted signal is a sum of random signals the proposed system can be used to enhance the security in signal transmission that will depend on the goodness of random sequence generators that produce spreading sequences. Due to the Gaussian distribution of the CDMA signal at the input of channel, the capacity of the channel is confirmed to be equivalent to the maximal theoretically achievable value for the white Gaussian noise channel. en
dc.description.uri http://www.vti.mod.gov.rs/oteh11/ en
dc.relation.ispartof 4th International Scientific Conference OTEH 2011 en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Noise Based PSK CDMA System for Secure Communications en
dc.type Conference Item en
pubs.begin-page 1 en
pubs.author-url http://www.vti.mod.gov.rs/oteh11/elementi/rad/004.htm en
pubs.end-page 6 en
pubs.finish-date 2011-10-07 en
pubs.start-date 2011-10-06 en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Conference Paper en
pubs.elements-id 626477 en
pubs.org-id Engineering en
pubs.org-id Department of Electrical, Computer and Software Engineering en
pubs.record-created-at-source-date 2017-05-19 en


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