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Multi-cell Cooperative Networks with Limited Cooperation

Barzegar Estanjin, Morteza | 2012

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 42879 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Hossein Khalaj, Babak; Behrouzi, Hamid
  7. Abstract:
  8. In recent years, base station coordination (also known as network MIMO) has been analyzed as a means of handling inter cell interference. In principle, all base stations might share their CSI and data through backhaul links. Unfortunately, the demands on backhaul capacity and computational power scale rapidly with the number of cells, which makes this approach unsuitable for practical systems. And these problems shift the researches to find ways for turning this idea to an idea that can be used in practical systems. One of the major changes to this idea can be dealing with local CSIT that there would be no need to exchanging CSIT among BSs. The other change that can make the idea to a more practical idea is clustering, that it means the cooperation is between limited number of BSs and not all of them. In this thesis after studying some proposed methods for practical implantation of this system, we propose a new solution for limiting the inter-cellular interference by using the spatial degree of freedom for this aim. And compare it by others in fairness and sum rate. And at the last, we propose a novel frequency reuse scheme that has better achievable sum rate than system with unit frequency reuse. And by simulations optimize the parameter of this scheme.
  9. Keywords:
  10. Cooperative Network ; Clustering ; Multi-Cell Networks

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