Journal of the Korea Institute of Information and Communication Engineering (한국정보통신학회논문지)

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Scheduling Scheme for Underlay-based D2D Direct Communications in Cellular Networks

셀룰러 네트워크에서 언더레이 기반의 단말간 직접통신을 위한 스케쥴링 방법

  • Ban, Tae-Won (Department of Information and Communication Engineering, Gyeongsang National University)
  • Received : 2015.10.08
  • Accepted : 2015.11.09
  • Published : 2015.12.31
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Abstract

Recently, device-to-device (D2D) direct communication is attracting much interest and many researches have been conducted. In this paper, we investigated an algorithm to support the D2D direct communication in cellular mobile communication networks. We investigated the optimal D2D scheduling algorithm which can achieve the maximal sum-rate in cellular uplink frequency. We also proposed a simple scheduling algorithm which can considerably reduce the computational complexity, compared to the optimal scheme. Finally, we analyzed the performance of the proposed scheme based on computer simulations.

최근, 단말간 직접 통신에 대한 관심이 높아지면서 이에 대한 활발한 연구가 진행되고 있다. 본 논문에서는 셀룰러 이동통신 네트워크에서 단말간 직접 통신을 지원할 수 있는 알고리즘에 대하여 연구하였다. 먼저, 셀룰러 이동통신 네트워크에서 상향 링크 주파수 자원을 활용하여 이동통신 서비스와 단말간 직접 통신을 동시에 제공할 경우 이론적으로 최대의 전송율을 얻을 수 있는 최적 방식을 제시하였다. 그리고, 최적 방식 대비 복잡도를 획기적으로 절감할 수 있는 스케쥴링 알고리즘을 제안하고, 컴퓨터 시뮬레이션을 통하여 성능을 분석하였다.

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