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Game Theoretic Approaches for Resource Allocation in Cellular Cognitive Radio Networks

Pasandshanjani, Ehsan | 2011

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 42067 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Hossein Khalaj, Babak
  7. Abstract:
  8. In this research, we intend to propose game theoretic approaches for allocating resources such as power and channel in wireless communication networks. One of the problems haven’t been investigated through game theory, is the joint channel and power allocation in downlink side of cellular cognitive radio networks. This is the main motivation for this thesis and in order to propose the first game theoretic method for this problem, we conducted our researches as follows: First of all, a game theoretic modeling for the problem of power control on CDMA networks will be introduced. In comparison with one of the main contributions in this domain, we will demonstrate how our algorithm results in lower power consumption levels and better fairness among users in terms of their received services, at the expense slight degradation in convergence rate. Next, we will generalize the model to the uplink of a cellular cognitive radio network, where primary users are willing to share their right of spectrum access with secondary users in return for receiving rewards. The aforementioned scenario will be modeled by proper utility and cost functions and through different simulations, we will investigate its performance. In addition, an admission control will be included in order to improve algorithm performance in terms of power consumption and network capacity in serving secondary users. Finally, we will propose the first game theoretic approach for the problem of downlink joint channel and power allocation in cellular cognitive radio networks. In comparison with one of the ptimization-based algorithms, we will demonstrate how our algorithm leads to considerable lower power consumption levels, at the expense of slight deviation of achieved SIR levels from target values for secondary users.
  9. Keywords:
  10. Game Theory ; Power Control ; Channel Allocation ; Cognitive Radio ; Code Division Multiplexing

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