DOI QR코드

DOI QR Code

Base Station Cooperation Scheme for Low-Latency Two-Way Communication

저지연 양방향 통신을 위한 기지국 협력 전송

  • Kim, Dong Min (Department of Internet of Things, Soonchunhyang University)
  • Received : 2020.04.26
  • Accepted : 2020.06.01
  • Published : 2020.06.30

Abstract

As the application fields using various types of communication, including the Internet of Things, have emerged, the form of communication has been diversified. Some applications require fast feedback and the others continue to send data regardless of whether it is received or not. Transmitting data in one way can be acknowledged by the opposite direction response. These information exchanges form a two-way communication. For applications that need to issue commands remotely, such as network control systems, it is important to give a fast response because the sender decides the next action based on the response from the recipient. In this paper, we propose the base station (BS) cooperation to improve the latency performance of the two-way communication in cellular networks. We design the two-way communication strategy utilizing cooperating BSs with the same direction of traffic as well as bidirectional traffic. We show that the proposed scheme improves the latency performance than the previous works.

사물인터넷을 비롯한 다양한 형태의 통신을 활용한 응용분야가 생겨남에 따라 통신의 형태가 다양해지고 있다. 어떠한 응용은 빠른 피드백을 요구하기도 하고, 다른 응용은 수신여부와는 상관없이 데이터를 계속 보내기도 한다. 한 방향으로 데이터를 전송하는 것은 반대 방향 응답에 의해 확인될 수 있다. 이러한 정보 교환은 양방향 통신을 형성한다. 송신자는 수신자의 응답에 따라 다음 동작을 결정하므로 빠른 응답을 제공하는 것이 중요하다. 본 논문에서는 셀룰러 네트워크에서 양방향 통신의 전송지연 성능을 향상시키기 위한 기지국 협력 전송 기법을 제안한다. 양방향 트래픽뿐만 아니라 동일한 방향의 트래픽을 가진 협력 기지국을 활용하는 양방향 통신 기법을 고안하였다. 제안한 방식을 통하여 지연 시간 성능이 향상됨을 확인하였다.

Keywords

References

  1. M. I. Ashraf, C.-F. Liu, M. Bennis, and W. Saad, "Towards low-latency and ultra-reliable vehicle-to-vehicle communication," in Proceedings of the European Conference on Networks and Communications (EuCNC) 2017, Oulu, Finland, June 2017.
  2. P. Schulz, M. Matthe, H. Klessig, M. Simsek, G. Fettweis, J. Ansari, S. A. Ashraf, B. Almeroth, J. Voigt, I. Riedel, A. Puschmann, A. Mitschele-Thiel, M. Muller, T. Elste, and M. Windisch, "Latency critical IoT applications in 5G: Perspective on the design of radio interface and network architecture," IEEE Communications Magazine, vol. 55, no. 2, pp. 70-78, Feb. 2017. https://doi.org/10.1109/MCOM.2017.1600435CM
  3. M. Shafi, A. F. Molisch, P. J. Smith, T. Haustein, P. Zhu, P. de Silva, F. P. Tufvesson, A. Benjebbour, and G. Wunder, "5G: A tutorial overview of standards, trials, challenges, deployment, and practice," IEEE Journal on Selected Areas in Communications, vol. 35, no. 6, pp. 1201-1221, Apr. 2017. https://doi.org/10.1109/JSAC.2017.2692307
  4. 3GPP TR 38.802, Study on new radio (NR) access technology physical layer aspects, 3GPP, Mar. 2017.
  5. M. K. Karakayali, G. J. Foschini, and R. Valenzuela, "Network coordination for spectrally efficient communications in cellular systems," IEEE Wireless Communications, vol. 13, no. 4, pp. 56-61, Aug. 2006. https://doi.org/10.1109/MWC.2006.1678166
  6. M. Sawahashi, Y. Kishiyama, A. Morimoto, D. Nishikawa, and M. Tanno, "Coordinated multipoint transmission/reception techniques for LTE-advanced," IEEE Wireless Communications, vol. 17, no. 3, pp. 26-34, June 2010. https://doi.org/10.1109/MWC.2010.5490976
  7. D. Lee, H. Seo, B. Clerckx, E. Hardouin, D. Mazzarese, S. Nagata, and K. Sayana, "Coordinated multipoint transmission and reception in LTE-advanced: deployment scenarios and operational challenges," IEEE Communications Magazine, vol. 50, no. 2, pp. 148-155, Feb. 2012. https://doi.org/10.1109/MCOM.2012.6146494
  8. F. Baccelli and A. Giovanidis, "A stochastic geometry framework for analyzing pairwise-cooperative cellular networks," IEEE Transactions on Wireless Communications, vol. 14, no. 2, pp. 794-808, Feb. 2015. https://doi.org/10.1109/TWC.2014.2360196
  9. H. Thomsen, P. Popovski, E. De Carvalho, N. Pratas, D. M. Kim, and F. Boccardi, "CoMPflex: CoMP for in-band wireless full duplex," IEEE Wireless Communications Letters, vol. 5, no. 2, pp. 144-147, Apr. 2016. https://doi.org/10.1109/LWC.2015.2510636
  10. H. Thomsen, D. M. Kim, P. Popovski, N. K. Pratas, and E. De Carvalho, "Full duplex emulation via spatial separation of half duplex nodes in a planar cellular network," in Proceedings of the 17th IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) 2016, Edingburgh, UK, July 2016.