한국전자통신학회논문지 (The Journal of the Korea institute of electronic communication sciences)

한국전자통신학회 (Korea Institute of Electronic Communication Science)
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혼합된 변조 방식을 적용한 차등 분산 협력 네트워크의 자원 할당 효과

Effect of Resource Allocation in Differential Distributed Cooperative Networks with Mixed Signaling Scheme

  • 조웅 (대구가톨릭대학교 자동차ICT융합공학과)
  • Cho, Woong (Dept. Automotive ICT Convergence Engineering, Daegu Catholic University)
  • 투고 : 2020.10.09
  • 심사 : 2020.12.15
  • 발행 : 2020.12.31
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초록

협력 네트워크는 중계기를 이용하여 신호를 전송하고, 수신기에서는 여러 중계기를 통해서 수신된 신호를 결합하여 복조함으로써 통신성능을 향상시킬 수 있다. 본 논문에서는 송신기-중계기 사이에서는 일반적인 변조 방식을 사용하고 중계기-수신기 사이에서는 공간 시간 코드 방식을 적용하는 협력 네트워크 시스템을 가정하여, 자원 할당에 따른 효과를 분석한다. 일반적인 변조 방식은 동기 변조 방식과 차등 변조 방식 두 가지를 고려하고 공간 시간 코드 방식은 차등 변조 방식을 적용한다. 자원 할당은 중계기의 위치와 전송에너지를 고려하며 중계기의 개수에 따른 성능 또한 분석한다.

Cooperative networks enhance the performance of communication systems by combining received signals from the several relay nodes where the source node transmits signals to relay nodes. In this paper, we analyze the effect of resource allocation in cooperative networks. We assume that the cooperative networks use the conventional modulation scheme between the source and relay nodes, and adopt space-time code between the relays and destination node. Both the synchronous and differential modulations are applied for the conventional scheme and differential modulation is used for the space-time code. We consider relay location and energy allocation for resource allocation, and the performance of cooperative networks depending on the number of relay is also investigated.

키워드

참고문헌

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