Bounding the blocking probabilities in multirate CDMA networks supporting elastic services
2007 (English)In: IEEE/ACM Transactions on Networking, ISSN 1063-6692, E-ISSN 1558-2566, Vol. 15, no 4, 944-956 p.Article in journal (Refereed) Published
Several previous contributions have proposed calculation methods that can be used to determine the steady state (and from it the blocking probabilities) of code-division multiple-access (CDMA) systems. This present work extends the classical Kaufman-Roberts formula such that it becomes applicable in CDMA systems in which elastic services with state-dependent instantaneous bit rate and average-bit-rate-dependent. residency time are supported. Our model captures the effect of soft blocking, that is, an arriving session may be blocked in virtually all system states but with a state dependent probability. The core of this method is to approximate the original irreversible Markov chain with a reversible one and to give lower and upper bounds on the so-called partially blocking macro states of the state space. We employ this extended formula to establish lower and upper bounds on the steady state and the classwise blocking probabilities.
Place, publisher, year, edition, pages
IEEE Press, 2007. Vol. 15, no 4, 944-956 p.
CDMA networks; Elastic traffic; Kaufman-Roberts formula; Reversible Markov chains; Soft blocking
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-203018DOI: 10.1109/TNET.2007.893880ISI: 000247788700017ScopusID: 2-s2.0-38149011993OAI: oai:DiVA.org:kth-203018DiVA: diva2:1082181
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QC 201703212017-03-152017-03-152017-03-21Bibliographically approved