Journal of Korea Society of Industrial Information Systems (한국산업정보학회논문지)

Korea Society of Industrial Information Systems (한국산업정보학회)
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Multiple-Relay-assisted SSB SFBC SC-FDMA Transmission System

다중중계기 기반의 SSB SFBC SC-FDMA 시스템

  • 원희철 (대구대학교 컴퓨터정보공학부)
  • Received : 2020.03.19
  • Accepted : 2020.04.14
  • Published : 2020.04.30
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Abstract

This paper proposes a multiple-relay-assisted single side band (SSB) space frequency block code (SFBC) single carrier (SC)-frequency division multiple access (FDMA) system and measures the performance of SSB SFBC SC-FDMA transmission system with the signal-to-noise power ratio SNR) between relays and a destination station. As we know, the performance of relay-assisted transmission systems can be easily improved by re-transmitting to the destination station after applying block code to the recovered transmitted signals of relays. In this paper, the performance improvement of the relay-assisted SSB SC-FDMA system can be obtained without any significant increase of system computational complexity by implementing block code with the complex conjugates symmetric characteristic of SSB system. The simulation result shows that the SNR performance of the proposed multiple-relay-assisted SSB SFBC SC-FDMA system is about 4 dB better than the performance of the single-relay-assisted SSB SC-FDMA system at the symbol error rate of 10-2.

본 논문에서는 중계기를 활용하여 직교 블록 부호화된 SSB (Single side band) SFBC (Space frequency block code) SC (Single carrier)-FDMA (Frequency division multiple access) 시스템을 제안하고, 수신국과 중계기 간의 SNR (Signal-to-noise power ratio)값을 기준으로 SSB SFBC SC-FDMA 시스템 성능을 측정한다. 잘 알려진 바와 같이. 중계기의 복원된 전송 신호를 이용하여 블록 부호를 생성한 후 수신국으로 재전송함으로써 중계기 기반 전송 시스템의 수신 성능을 향상시킬 수 있다. 본 논문에서는 SSB 시스템의 켤레 복소수 대칭 특성을 이용하여 블록 부호를 구현하도록 제안함으로써 시스템 계산 복잡도는 크게 증가시키지 않으면서 중계기 기반의 SSB SC-FDMA 전송 시스템의 성능을 향상시킬 수 있다. 본 논문에서 제안한 다중 중계기 기반의 SSB SFBC SC-FDMA 전송 시스템의 SNR 성능이 단일 중계기를 활용한 SSB SC-FDMA 전송 시스템보다 10-2 SER(Symbol error rate) 수준에서 4 dB 이상 향상되는 것을 시뮬레이션을 통해 확인할 수 있다.

Keywords

References

  1. Al-Dhahir, N. (2001). Single-Carrier Frequency-Domain Equalization for Space-Time Block Coded Transmissions over Frequency-Selective Fading Channels, IEEE Communications Letters, 5, 304-306, http://doi.org/10.1109/4234.935750
  2. Alamouti, S. (1998). A Simple Transmit Diversity Technique for Wireless Communications, IEEE Journal of Selected Areas in Communications, 16, 1451-1458. http://doi.org/10.1109/49.730453
  3. Falconer, D., Ariyavisitakul, S., Benyamin, S., and Edison, B. (2002). Frequency Domain Equalization for Single-carrier Broadband Wireless Systems, IEEE Communications Magazine, 40, 58-66. http://doi.org/10.1109/35.995852
  4. Jang, J., Won, H., and Im, G. (2006). Cyclic Prefixed Single Carrier Transmission with SFBC over Mobile Wireless Channels, IEEE Signal Processing Letters, 13, 261-264. http://doi.org/10.1109/LSP.2006.870374
  5. Kim, B., and Ryu, H. (2017). Design and Performance Evaluation of Improved DFT-s-SSB OFDM, The Journal of Korean Institute of Communications and Information Sciences, .42, 2086-2092. http://doi.org/10.7840/KICS.2017.42.11.2086
  6. Kim, Y., Jeong, B., Chung, J., Hwang, C., Ryu, J., Kim, K., and Kim, Y. (2003). Beyond 3G: Vision, Requirement, and Enabling Technologies, IEEE Communications Magazine, 41, 120-124. http://doi.org/10.1109/MCOM.2003.1186555
  7. Kwon, T., Lee, H., Choi, S., Kim, J., Cho, D., Cho, S., Yun, S., Park, W., and Kim, K. (2005). Design and Implementation of a Simulator Based on a Cross-layer Protocol Between MAC and PHY Layers in a WiBro Compatible IEEE 802.16e OFDMA System, IEEE Communications Magazine, 43, 136-146. http://doi.org/10.1109/MCOM.2005.1561931
  8. Lee, J., and Ryu, H. (2018). Performance Evaluation of DFT Spreading SSB WR-OFDM System Using Multi-level PAM Modulation, The Journal of Korean Institute of Communications and Information Sciences, 43, 2032-2040. http://doi.org/10.7840/KICS.2018.43.12.2032
  9. Nee, R., and Prasad, R. (2000). OFDM for Wireless Multimedia Communications, Artech House Publishers.
  10. Nee, R., Awater, G., Morikura, M., Takanashi, H., Webster, M., and Halford, K. (1999). New High-rate Wireless LAN Standards, IEEE Communications Magazine, 37(12), 82-88. http://doi.org/10.1109/35.809389
  11. Oppenheim, A., and Schafer, R. (1989). Discrete-time Signal Processing, Prentice-Hall Publishers.
  12. Pabst, R., Walke, B., Schultz, D., Herhold, P., Yanikomeroglu, H., Mukherjee, S., Viswanathan, H., Lott, M., Zirwas, W., Dohler, M., Aghvami, H., Falconer, D., and Fettweis, G. (2004). Relay-based Deployment Concepts for Wireless and Mobile Broadband Radio, IEEE Communications Magazine, 42, 80-89. http://doi.org/10.1109/MCOM.2004.1336724
  13. Tarokh, V., Jafarkhani, H., and Calderband, A. (1999). Space-Time Block Codes from Orthogonal Designs, IEEE Transactions on Information Theory, 45, 1456-1467. http://doi.org/10.1109/18.771146
  14. Ueng, F., Shen, Y., Chang, J., Chang, Y., and Hsu, M. (2013). MIMO Receivers for SFBC SC-FDMA Communication Systems, 2013 IEEE Symposium on Computational Intelligence for Communication Systems and Networks (CIComms), 66-71. http://doi.org/10.1109/CICommS.2013.6582856
  15. Umehira, M., Nihei, S., Fusayasu, H., Miyajima, T., Takeda, S., Mashino, J., and Sugiyama, T. (2015). Performance Evaluation of SSB Transmission of DFTs-OFDM Using Multi-level BPSK through Nonlinear HPA, Proceedings of 81st IEEE Vehicular Technology Conference, IEEE, Glasgow, UK, July. http://doi.org/10.1109/VTCSpring.2015.7146006
  16. Won, H. (2011). MRC MMSE Equalization for SC-FDE in Amplify-and-Forward Relaying Networks, Journal of the Korea Industrial Information Systems Research, 16, 19-26. http://doi.org/10.9723/jksiis.2011.16.4.019
  17. Won, H. (2014). Space-frequency Block Coded OFDMA Transmission System Using Multiple Relays for Shadow Area, Journal of the Korea Industrial Information Systems Research, 19, 1-8. http://doi.org/10.9723/jksiis.2014.19.4.001
  18. Won, H. (2019). Space-Frequency Block Coded Single Side Band SC-FDMA Transmission System, Journal of the Korea Academia-Industrial Cooperation Society, 20, 423-429. http://doi.org/10.5762/KAIS.2019.20.7.423
  19. Won, H., and Kim, S. (2009). Channel Selective Relay-based Multiple-input SC-FDMA/OFDMA Transmission System, Journal of the Korea Industrial Information Systems Research, 14, 1-9. http://doi.org/10.9723/jksiis.2009.14.5.001
  20. Yune, T.. Lim, J., Cheong, Y., and Im, G. (2008). Iterative Multiuser Detection with Spectral Efficient Protocol for Relay-assisted SC-FDE, IEEE Communications Letters, 12, 182-184. http://doi.org/10.1109/LCOMM.2008.071688