The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Study on QoE of the VoIP Service for QoS levels over LTE Mobile Communication System

LTE 이동통신 시스템에서 QoS 변화에 따른 VoIP 서비스의 사용자 체감 품질 변화에 대한 연구

  • 김범준 (계명대학교 전자공학과)
  • Received : 2016.02.22
  • Accepted : 2016.03.24
  • Published : 2016.03.31
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Abstract

Recently, the voice service over a mobile communication system tends to be provided based on the packet-based technology. Even though the sufficient transmission rate is supported by LTE mobile communication system, the quality of VoIP service that is experienced by the user can be degraded by the change in the transmission conditions and the terminal mobility. This paper has established an environment on which experiments are conducted for the different values of the major parameters that represent the transmission conditions. The result can contribute to the decision of the requirement that the mobile system should meet for maintaining the quality of VoIP service.

최근 이동통신 환경에서 음성 서비스는 VoIP 기술을 이용한 패킷 기반 서비스로 이루어지고 지는 추세에 있다. VoIP 패킷을 전송하기 위해서 필요한 전송 속도를 고려했을 때 현재 LTE 이동통신 시스템이 제공하는 전송 속도는 매우 충분하지만 무선 채널의 특성 상 단말 주변의 전송 환경의 변화나 이동성 등으로 인한 일시적인 서비스 품질의 저하가 발생할 수 있다. 본 논문에서는 이와 같은 실험 환경을 구축하고 주요 전송 관련 파라미터를 변화시키면서 그에 따른 VoIP 서비스의 품질의 변화를 측정하였다. 이를 토대로 향후 VoIP 서비스 제공을 위한 네트워크 요구 사항을 수립하는 것이 가능하다.

Keywords

References

  1. D. Kim and B. Kim, "A Measurement-based Quality Evaluation Scheme for Mobile VoIP Service over Wireless Broadband(WiBro) Networks," J. of the Korea Institute of Electronic Communication Science, vol. 5, no. 5, Oct. 2010, pp. 528-533.
  2. B. Kim, "Software-based Quality Measurement of Mobile VoIP Services," J. of the Korea Institute of Electronic Communication Science, vol. 6, no. 1, Feb. 2011, pp. 55-60.
  3. S. Barakovic and L. Skorin-Kapov, "Survey and Challenges of QoE Management Issues in Wireless Networks," J. of Computer Networks and Communications, vol. 2013, Dec. 2012. pp. 1-28.
  4. K. Laghari and K. Connelly, "Toward Total Quality of Experience: A QoE Model in a Communication Ecosystem," IEEE Communications Mag., vol. 50, issue 4, Apr. 2012, pp. 58-65. https://doi.org/10.1109/MCOM.2012.6178834
  5. M. Fiedler, T. Hossfeld and P. Tran-Gia, "A Generic Quantitative Relationship between Quality of Experience and Qualty of Service," IEEE Network, vol. 24, issue 2, Apr. 2010, pp. 36-41.
  6. I. Ketyko, K. Moor, and L. Martens, "Performing QoE-Measurements in an Actual 3G Network," In proc. 2010 IEEE Int. Symp. on Broadband Multimedia Systems and Broadcasting (BMSB), Shanghai, Mar. 2010, pp. 1-6
  7. H. Juh, "An Improved Algorithm of Distributed QoS in Real-time Networks," J. of The Korea Institute of Electronic Communication Sciences, vol. 7, no. 1, 2012, pp. 53-60.
  8. S. Bae, S. Lee, and K. Park, "Multipath Routing Method for QoS Support in WMSNs," J. of the Korea Institute of Electronic Communication Sciences, vol. 8, no. 3, 2013, pp. 453-458. https://doi.org/10.13067/JKIECS.2013.8.3.453
  9. Y. Kim, "Performance of VoIP traffics over MANETs under DDoS Intrusions," J. of the Korea Institute of Electronic Communication Sciences, vol. 6, no. 4, 2011, pp. 493-498.