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Interference modeling and generalized static capacity for uplink CDMA cellular networks

Faghih Imani, S ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. DOI: 10.1109/ICTMICC.2007.4448597
  3. Publisher: 2007
  4. Abstract:
  5. 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. ©2007 IEEE
  6. Keywords:
  7. CDMA ; Cdma cellular networks ; Correlation properties ; Discrete levels ; Effective factors ; Flexible approximations ; Heterogeneous conditions ; Interference ; Interference distributions ; Jackson ; Lloyd algorithms ; Markov chains ; New approaches ; Outage probabilities ; Shadowing ; Solution properties ; Spatial locations ; Static capacities ; Steady states ; Time variations ; Traffic states ; Cellular neural networks ; Cellular telephone systems ; Code division multiple access ; Markov processes ; Metropolitan area networks ; Outages ; Probability ; Probability distributions ; Queueing theory ; Random processes ; Telecommunication ; Telecommunication systems ; Queueing networks
  8. Source: 2007 IEEE International Conference on Telecommunications and Malaysia International Conference on Communications, ICT-MICC 2007, Penang, 14 May 2007 through 17 May 2007 ; February , 2007 , Pages 17-22 ; 1424410940 (ISBN); 9781424410941 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/4448597