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Resource Allocation in Coordinated Multi-Cell Networks Based on Game Theory

Haddadi, Shima | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 44987 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Behroozi, Hamid; Hosseini Khalaj, Babak
  7. Abstract:
  8. Satisfying the growing demands for mobile services and radio communications makes the future wireless networks to fully reuse resources such as available frequency bands, which in turn leads to profound increase in inter-cell interferences (ICI). Forcing higher interference may degrade the performance of systems in serving the users especially in cell-edges. Necessity of mitigating ICI along with higher data rate requirements push the communication engineers to advanced technologies utilization. As a result of higher complexity based on promising technologies, resource management would play even a major role in next generation mobile networks. Analyzing these technical challenges that have taken a lot of attention recently, is the main scope of this thesis. Thus, using fractional frequency reuse (FFR) as an asserted idea in this context, cell-edge users of this thesis are separated from central ones (users near to BSs) who are designed to be served only with the BS of their own cell in this thesis and coordinated multipoint joint transmission (CoMP JT) is applied to improve communication quality in cell-edges. Namely, two or more coordinated BSs are employed to provide service to one user, simultaneously. Indeed, in CoMP architecture, coordinated cells are clustered together statically or dynamically and the existing trade-offs between them are also discussed in this dissertation. The efficiency of a wireless cellular network mostly depends on the allocating schemes for valuable resources such as power and bandwidth. Providing a minimum quality of service (QoS) level for all users, minimizing power consumption in order to afford the requested QoS and maximizing the revenue of the service provider are numbers of adopted metrics in this thesis to allocate resources among different users. Another goal of this thesis is to allow users to determine different QoS levels corresponding to their needs and the cost they can afford. Game Theory is a powerful tool to model and analyze the resource allocation problem which is not yet applied in coordinated multi-cell networks. This is our main motivation to propose a game theoretic approach for resources allocation problem in this kind of networks based on OFDMA
  9. Keywords:
  10. Game Theory ; Intercell Interference Coordination ; Resources Allocation ; Coordinated Multipoint (CoMP)Networks ; Coordinated Multipoint Joint Transmission ; Dynamic Clustering ; Static clustering ; Partial Frequency Reuse ; Orthogonal Frequency Division Multiplexing (OFDM)

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