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D2D 선행 단말을 이용한 LTE 핸드오버 지원방안

A Novel LTE Handover Scheme through a Leading Device for Maintain D2D Communication

  • 강찬욱 (광운대학교 전자통신공학과) ;
  • 민상원 (광운대학교 전자통신공학과)
  • Kang, Chan-Uk (Dept. of Electronics & Communications Eng, Univ. of Kwangwoon) ;
  • Min, Sang-Won (Dept. of Electronics & Communications Eng, Univ. of Kwangwoon)
  • 투고 : 2019.04.26
  • 심사 : 2020.03.19
  • 발행 : 2020.04.30

초록

'모바일 디바이스가 급속도로 증가하고 있고, 단말의 잦은 핸드오버로 인한 망 과부하 문제가 발생하고 있다. 이에 대한 해결방안으로 LTE 기반의 D2D 통신을 이용한 핸드오버를 통하여 망 과부하 문제와 핸드오버 딜레이를 줄일 수 있을 것으로 기대하고 있다. 본 논문에서는 기존 LTE 네트워크의 핸드오버 방식에서 LTE 기반의 D2D 통신을 이용한 선행 단말을 통하여 핸드오버를 지원하는 방안을 제시하였다. 기지국과 단말 사이의 핸드오버 시 사용되는 중복신호를 줄이기 위하여 선행 단말을 통하여 단말의 핸드오버 상황을 효율적으로 해결할 수 있는 방안에 대하여 제안하였다. 단말의 개수 변화에 따른 핸드오버 딜레이는 제안한 방안이 기존 LTE 핸드오버에 비하여 감소한 결과를 확인할 수 있었다.

Since the number of user equipments has also increased rapidly, the problem of network load due to frequent handover of user equipments has occurred. As a solution to this we expect to be able to reduce network overload problems and the delay caused by handover using LTE-based D2D communication. In this paper, we proposed a proposal to support handover via a preceding user equipment using LTE-based D2D communication by handover method of existing LTE network. We proposed a method that can efficiently solve the handover situation of the user equipment via the preceding user equipment in order to reduce the overlapping signal used at the time of handover between the base station and the user equipment. The handover delay accompanying the change in the number of user equipments was able to confirm the result that the suggested scheme was reduced as compared with the existing LTE handover.

키워드

참고문헌

  1. 3GPP TR 23.401 V14.1.0(2016), "General Packet Radio Service enhancements for Evolved Universal Terrestrial Radio Access Network access," 3GPP, Release 14.
  2. 3GPP TR 24.334 V13.3.1(2016), "ProSe UE to ProSe Function Protocol Aspects Stage 3," 3GPP, Release 13.
  3. Mehedi H. et al.(2019), "Frequent-Handover Mitigation in Ultra-Dense Heterogeneous Networks," IEEE Transactions on Vehicular Technology, vol. 16, no. 12, pp.1035-1040.
  4. Panigrahy K. et al.(2018), "Analyzing the Effect of Soft Handover on Handover Performance Evaluation Metrics Under Load Condition," IEEE Transactions on Vehicular Technology, vol. 67, no. 4, pp.3612-3624. https://doi.org/10.1109/TVT.2017.2786342
  5. Sone K. et al.(2016), "Analysis of power confumption in mobile backhaul network with densely deployed small cells under dynamic traffic behavior," 2016 21st OptoElectronics and Communications Conference (OECC).
  6. Xiaodong X. et al.(2017), "Modeling and Analyzing the Cross-Tier Handover in Heterogeneous Networks," IEEE Transcations on Wireless Communication, vol. 16, no. 12, pp.7859-7869. https://doi.org/10.1109/TWC.2017.2754260
  7. Zakia U. et al.(2016), "Analysis of wireless information transmission in a trade fair through device to device communication under LTE network," 2016 IEEE 7th Annual Information Technology, Electronics and Mobile Communication Conference (IEMCON).