Performance Analysis of a Chaos-Based Multi-User Communication System Implemented in DSP Technology

UTSePress Research/Manakin Repository

Search UTSePress Research


Advanced Search

Browse

My Account

Show simple item record

dc.contributor.author Simic, Ljiljana. en_AU
dc.contributor.author Berber, Stevan M. en_AU
dc.date.accessioned 2007-03-12T22:05:32Z
dc.date.accessioned 2012-12-15T02:29:41Z
dc.date.available 2007-03-12T22:05:32Z
dc.date.available 2012-12-15T02:29:41Z
dc.date.issued 2007-03-12T22:05:32Z
dc.identifier.uri http://hdl.handle.net/2100/80
dc.identifier.uri http://hdl.handle.net/10453/19644
dc.description.abstract This paper presents the implementation of a multi-user chaos-based communication system in DSP. The system is based on the chaotic phase shift keying (CPSK) digital modulation scheme, where chaotic signals are used as the spreading sequences of a CDMA system. Using chaotic signals offers the advantages of increased security and higher system capacity compared with conventional sequences. The aim of this hardware implementation was to enable a comparison against analytical performance results for CPSK. The transceiver prototype was implemented on a 32-bit floating-point TigerSHARC DSP. Its bit error rate (BER) characteristics were measured in the presence of additive white Gaussian noise. The prototype achieves excellent BER performance, matching that of theoretical CPSK. The effects of the limited number precision of the hardware platform are thus negligible. However, due to the limited concurrency of DSP, the multi-user system only supports low data rates. en_AU
dc.format.extent 148912 bytes
dc.format.mimetype application/pdf
dc.language.iso en_AU
dc.title Performance Analysis of a Chaos-Based Multi-User Communication System Implemented in DSP Technology en_AU


Files in this item

This item appears in the following Collection(s)

Show simple item record