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비대칭 환경에서 듀얼홉 통신시스템의 자원할당 성능분석

Performance Analysis of Resource Allocation in Asymmetric dual-hop Communication System

  • 조웅 (강원대학교 전자정보통신공학과)
  • Woong Cho (Dept. of Electronics, Information and Communication Engineering, Kangwon National University)
  • 투고 : 2024.06.30
  • 심사 : 2024.08.12
  • 발행 : 2024.08.31

초록

통신시스템에서 중계기는 전체 시스템의 성능을 향상시키는 장점으로 인해 다양한 통신환경에서 적용되어져 왔다. 본 논문에서는 하나의 중계기를 이용하는 듀얼홉 통신시스템에서 비대칭 통신 시나리오를 고려한 시스템의 성능을 분석한다. 성능분석은 비트오류율을 사용한다. 먼저 대칭 환경과 비대칭 환경에서의 전체 성능을 비교하고 자원할당에 따른 성능을 분석한다. 자원할당은 에너지 할당과 중계기 위치 할당을 고려한다. 에너지 할당과 중계기 위치에 따른 성능을 각각 분석하고 두 가지 자원을 동시에 고려했을 경우에 대한 성능 또한 분석한다. 성능분석을 기반으로 하여 대칭 환경과 비대칭 환경에서의 자원할당 효과에 대해 논의한다.

Relay has been applied various communication environments due to its advantages of performance enhancement in communication systems. In this paper, we analyze the performance of a dual-hop communication system which uses one relay by considering asymmetric communication scenarios. The performance is based on bit error rate. Firstly, we compare the overall performance of dual-hop communication system under symmetric and asymmetric, and then analyze the performance depending on the resource allocation. Energy allocation and relay location are considered in the resource allocation. The performance of overall system for each energy allocation and relay location is analyzed. In addition, we analyze the performance of communication system when both energy and relay location are considered simultaneously. Based on the analyzed performance, we discuss the effect of resource allocation for symmetric and asymmetric environments.

키워드

과제정보

본 논문은 2023년도 강원대학교 대학회계 학술연구조성비로 연구하였음. 본 논문은 울산시-ETRI 2차 공동협력사업의 일환으로 수행되었음. [24AB1600, 제조 혁신을 위한 주력산업 지능화 기술 개발 및 산업현장에서의 사람-이동체-공간 자율협업지능 기술 개발]

참고문헌

  1. A. Ribeiro, X. Cai, and G. B. Giannakis, "Symbol error probabilities for general cooperative links," IEEE Transactions on Wireless Communications, vol. 4, no. 3, May 2005, pp. 1264-1273. https://doi.org/10.1109/TWC.2005.846989 
  2. W. Cho, "Energy allocation in dual-hop communication system: comparative study," ICT Express, vol. 7, no. 3, Sept. 2021, pp. 380-383. https://doi.org/10.1016/j.icte.2020.12.007 
  3. Z. Abdullah, S. Kisseleff, W. A. Martins, G. Chen, L. Sanguinetti, K. Ntontin, A. Papazafeiropoulos, S. Chatzinotas, and B. Ottersten, "Cooperative hybrid networks with active relays and RISs for B5G: Applications, challenges, and research directions," IEEE Wireless Communications, vol. 31, no. 1, Feb. 2024, pp. 126-132. https://doi.org/10.1109/MWC.012.2200292 
  4. M. Can and I. Altunbas, "Outage probability analysis of Rate-Splitting Multiple-Access-based hybrid satellite-terrestrial relay network with relay selection," IEEE Trans. Aerospace and Electronic Systems, vol. 59, no. 5, Oct. 2023, pp. 6508-6517. https://doi.org/10.1109/TAES.2023.3276343 
  5. Q. Li, P. Si, Y. Zhang, J. Wang, D. Zhang, and F. R. Yu, "UAV altitude, relay Selection, and user association optimization for cooperative relay-transmission in UAV-IRS-based THz networks," IIEEE Trans. Green Communications and Networking, vol. 8, no. 2, June. 2024, pp. 815-826. https://doi.org/10.1109/TGCN.2023.3347567 
  6. L. Bariah, W. Jaafar, S. Muhaidat, H. Elgala, and H. Yanikomeroglu, "On the error performance of LoRa-enabled aerial networks over shadowed Rician fading channels," IIEEE Communications Letters, vol. 26, no. 10, Oct. 2022, pp. 2322-2326. https://doi.org/10.1109/LCOMM.2022.3193409 
  7. W. Cho and H-B. Cho "Effect of relay location in cooperative networks with partially differential modulation scheme," J. of The Korea Institute of Electronic Communication Sciences, vol. 10, no. 6, 2015, pp. 671-676. https://doi.org/10.13067/JKIECS.2015.10.6.671 
  8. W. Cho, "Relay network using UAV: survey of physical layer and performance enhancement issue," J. of The Korea Institute of Electronic Communication Sciences, vol. 14, no. 5, 2019, pp. 901-906. https://doi.org/10.13067/JKIECS.2019.14.5.901 
  9. W. Cho, "Effect of Resource Allocation in Differential Distributed Cooperative Networks with Mixed Signaling Scheme," J. of The Korea Institute of Electronic Communication Sciences, vol. 15, no. 6, 2020, pp. 1131-1136. https://doi.org/10.13067/JKIECS.2020.15.6.1131 
  10. M. O. Hasna and M.-S. Alouini, "End-to-end performance of transmission systems with relays over Rayleigh-fading channels," IEEE Trans. Wireless Commun., vol. 2, no. 6, Nov. 2003, pp. 1126-1131. https://doi.org/10.1109/TWC.2003.819030 
  11. M. K. Simon and M.-S. Alouini, Digital communication over fading channels, 2nd Edition. New York: Wiley, 2005.