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Energy Harvesting and Energy Cooperation in Competitive Interference Channel

Nasrabadi, Masoud | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 49635 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Mirmohseni, Mahtab
  7. Abstract:
  8. Energy Harvesting is one of the techniques which can be utilized in Green Communications and increase the wireless networks lifetime. In an EH system, each resource is supplied with the energy harvested from the environment. When we confront with a situation that the users of one channel want to increase their rates and this action negatively affects the other user’s rates, the user’s cooperation problem for obtaining a fair rate will be created. In this study, at first we consider a Multiple Access Channel and we assume that the energy resources of transmitters are harvested according to a known probability. In addition, we assume that the transmitters do not know the instantaneous amount of the other user power and just know the distributions. We model this problem with a game and find a region named “Feasible Power Region” thanks to the game theory results. This region provides the possibility of the error free transmission for the users. Then we define a concept that motivates the energy transfer between the users and show that the transferring energy in some cases is useful. Furthermore, based on pre-assumptions we find the original Nash point of the game. Next, we extend some of the results to the Interference Channel. We consider strong Interfenence Channel and find its feasible power region and discuss the differences between strong IC and MAC. We find the H-K capcity region in the mixed regime and find its NBS and then find the feasible power region of that based on this capcity region
  9. Keywords:
  10. Energy Harvesting ; Interference Channel ; Energy Transfer ; Nash Equilibrium Point ; Bargaining Power ; Power Selection Theorem

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