Journal of the Korea Society of Computer and Information (한국컴퓨터정보학회논문지)

Korean Society of Computer Information (한국컴퓨터정보학회)
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D2D Utility Maximization in the Cellular System: Distributed Algorithm

  • Oh, Changyoon (Dept. of Information & Communications Engineering, Inha Technical College)
  • Received : 2019.01.24
  • Accepted : 2019.03.14
  • Published : 2019.03.29
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Abstract

We consider the D2D sum utility maximization in the cellular system. D2D links reuse the uplink resource of cellular system. This reuse may cause severe interference to cellular users. To protect the cellular users, interference limit from the D2D links is required. In this setting, D2D sum utility maximization problem is investigated. Each D2D link has limited transmit power budget. Because optimum solution may require global information between links and computational complexity, we propose the distributed algorithm which only require the local information from each D2D link and simple broadcasting. Simulation results are provided to verify the performance of the proposed algorithm.

Keywords

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Fig. 1. System Model

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Fig. 2. Utility with different interference levels

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Fig. 3. Proposed Distributed Algorithm

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Fig. 4. Performance Comparison-Dense case

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Fig. 5. Performance Comparison-Sparse case

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