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Delay Constrained Throughput Analysis of CDMA Using Stochastic Network Calculus
KTH, School of Electrical Engineering (EES), Communication Theory. KTH, School of Electrical Engineering (EES), Centres, ACCESS Linnaeus Centre.
2011 (English)In: 17th IEEE International Conference on Networks (ICON2011), 2011Conference paper (Refereed)
Abstract [en]

Code-division multiple-access (CDMA) has the potentialto support traffic sources with a wide range of qualityof service (QoS) requirements. The traffic carrying capacity ofCDMA channels under QoS constraints (such as delay guarantee)is, however, less well-understood. In this work, we propose amethod based on stochastic network calculus and large systemanalysis to quantify the maximum traffic that can be carriedby a multiuser CDMA network under the QoS constraints. Atthe physical layer, we have linear minimum-mean square errorreceivers and adaptive modulation and coding, while the channelservice process is modeled by using a finite-state Markov chain.We study the impact of delay requirements, violation probabilityand the user load on the traffic carrying capacity under differentsignal strengths. A key insight provided by the numerical resultsis as to how much one has to back-off from capacity under thedifferent delay requirements.

Place, publisher, year, edition, pages
National Category
Signal Processing Telecommunications
URN: urn:nbn:se:kth:diva-77885ScopusID: 2-s2.0-84859989008OAI: diva2:492149
17th IEEE International Conference on Networks (ICON2011), Dec. 14-16, Singapore
QC 20120330Available from: 2012-02-07 Created: 2012-02-07 Last updated: 2012-03-30Bibliographically approved

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Vehkaperä, Mikko
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Communication TheoryACCESS Linnaeus Centre
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