DOI QR코드

DOI QR Code

A Study on Improvement of LTE-WiFi Vertical Handover Efficiency

LTE-WiFi Vertical 핸드오버 효율향상 방안 연구

  • Received : 2017.01.04
  • Accepted : 2017.04.07
  • Published : 2017.04.30

Abstract

In this paper, we try to solve the frequency shortage due to the increase of LTE terminals and the traffic jam caused by the inefficient WiFi connection method. The proposed LTE-WIFI Vertical Handover method uses a pre-authentication method of the AP through LTE and a method of controlling the access AP of the terminal using the RADIUS server. Through the simulation, the proposed method shows that the access speed of the AP is improved by about 95% compared to the conventional connection method, and the connection speed is improved by about 18% compared to the conventional method. Providing seamless AP through pre-authentication system and improving wireless network speed through AP access distribution can solve LTE frequency shortage problem and improve wireless network usage satisfaction.

본 논문은 LTE 사용단말 증가에 따른 주파수 부족현상 개선과 기존의 비효율적인 WiFi의 접속방법으로 인한 트래픽 몰림 현상을 해결하고자 한다. 제안한 LTE-WIFI Vertical Handover 방식은 LTE를 통하여 AP의 사전인증 방법과 RADIUS 서버를 이용하여 단말의 접속 AP를 통제하는 방법이 사용되었다. 제안한 방법은 모의실험을 통하여 기존연결방식대비 AP의 접속속도가 95%가량 향상된 것을 확인할 수 있었고 연결 속도는 기존대비 18%가량 개선된 것을 확인할 수 있었다. 사전인증시스템을 통한 끊김 없는 AP제공과 AP접속 분배를 통한 무선네트워크 속도 향상으로 LTE주파수 부족 문제 해결과 무선네트워크 이용 만족도를 향상시킬 수 있다.

Keywords

References

  1. Cisco, "Cisco visual networking index : Global Mobile data traffic forecast update, 2015-2020", 2016
  2. Son T. J., Lee W. J., Back J. H, "A Video Pictures-based Error Control Method for Improving Resources Efficiency over Wireless Networks", Journal of advanced navigation technology, v.18 no.1 = no.64, pp.67 - 73, 2014 DOI: https://doi.org/10.12673/jkoni.2014.18.1.67
  3. Kang Y. H., Lee D. Y., Park D. K., "Spectrum Access Model Proposal for Frequency Sharing in 3-4 GHz", The journal of Korea Electromagnetic Engineering Society, v.25 no.8, pp.821 - 827, 2014 DOI: https://doi.org/10.5515/KJKIEES.2014.25.8.821
  4. Hong C. S. and etc, "D2D technology for mobile communication frequency reuse", The proceedings of the Korean Institute of Electromagnetic Engineering and Science, v.23 no.3, pp.14 - 26, 2012. https://doi.org/10.5515/KJKIEES.2012.23.1.014
  5. Nam C. W., Lee. J. W., Park S. W., "Overview of heterogeneous networks and analysis of key issues", Information & communications magazine, v.29 no.2, pp.68 - 76, 2012
  6. NMC Consulting Group, "LTE : EMM scenarios based on user experience and 11 EMM cases", http://www.netmanias.com, 2011
  7. You C. M., "KT, SKT, LG U+ Wi-Fi Hotspot: Web based Authentication Workflow", http://www.netmanias.com, 2012
  8. Lim S. C., "A Study of Call Admission Scheme using Power Strength Threshold value between APs in Wireless LAN Environments", The Institute of Internet, Broadcasting and Communication, v.15 no.3, pp.107 - 112, 2015. DOI: https://doi.org/http://dx.doi.org/10.7236/JIIBC.2015.15.3.107