Interference modeling and generalized static capacity for uplink CDMA cellular networks

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we propose a new approach in computing interference distribution and outage probability for uplink CDMA cellular networks. In this approach, we model time-varying interference as a discrete-time Markov chain with flexible approximation and find its steady state distribution. Our approach is based on tracing the time variation of the effective factors in interference such as spatial locations, activity status, and shadowing status for the connected users. To this end, we approximate shadowing with several discrete levels by Lloyd algorithm. Moreover, we incorporate correlation properties of the shadowing status in our model. Then, we map the effective factors onto the parameters of a closed Jackson queueing network. With respect to the product-form solution property of Jackson queueing network, we compute the probability distribution of the traffic states corresponding to the various interference statuses. Hence, this approach enables us to find outage probability and following that, static capacity in heterogeneous conditions. At last, we validate the capability of our model for some situations by simulation.

Original languageEnglish (US)
Title of host publicationProceeding - 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007
Pages17-22
Number of pages6
DOIs
StatePublished - 2007
Event2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007 - Penang, Malaysia
Duration: May 14 2007May 17 2007

Publication series

NameProceeding - 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007

Conference

Conference2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007
CountryMalaysia
CityPenang
Period5/14/075/17/07

Keywords

  • CDMA
  • Interference
  • Queueing network
  • Shadowing

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

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