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

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Performance Comparison of Differential Distributed Cooperative Networks with Modulation Scheme and Relay Location

변조방식 및 중계기 위치를 고려한 차등 분산 협력 네트워크의 성능비교

  • Cho, Woong (Dept. of Automotive ICT Convergence Engineering, Daegu Catholic University)
  • 조웅 (대구가톨릭대학교 자동차ICT융합공학과)
  • Received : 2020.04.28
  • Accepted : 2020.06.15
  • Published : 2020.06.30
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Abstract

Cooperative networks provides the benefits of performance improvements and capacity increment when the source node transmits signal to the destination node using several relay nodes. In this paper, we consider the cooperative network where the transmission scheme between the source node and relay node use conventional binary signaling, whereas the transmission scheme between thee relay node and destination node adopt the differential space time coding signaling. We analyze the performance of the system depending on the modulation scheme, i.e., coherent and differential modulation, at the source-relay links. The performance depending on the relay location is also compared by considering modulation scheme and the number of relay node.

협력 네트워크는 전송기에서 송신기로 신호를 전송할 때 여러 개의 중계기를 통해 신호를 전송함으로써 통신성능을 향상시키고 전송용량을 증가시키는 장점을 제공한다. 본 논문에서는 송신기와 중계기 사이에서는 일반적인 이진변조방식을 이용하여 신호를 전송하고 중계기와 수신기 사이에서는 차등 공간 시간 코드 방식을 적용한 신호전송 시스템을 고려한다. 먼저 송신기와 중계기 사이에서 동기방식과 차등변조 방식을 적용했을 때의 성능을 분석한다. 변조방식 및 중계기의 개수를 고려한 다양한 중계기 위치에서의 성능 또한 비교한다.

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References

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