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LTE 네트워크에서 비용효과적인 위치 및 서비스 관리 기법의 성능분석

Performance Analysis of Cost-Effective Location and Service Management Schemes in LTE Networks

  • 이준희 (성균관대학교 컴퓨터공학과) ;
  • 정종필 (성균관대학교 정보통신공학부)
  • 투고 : 2012.06.04
  • 심사 : 2012.12.14
  • 발행 : 2012.12.31

초록

LTE네트워크에서 사용자별 비용효과적인 위치 및 서비스 관리에 대하여 모바일 사용자와 해당 사용자와 연계된 모든 클라이언트-서버 어플리케이션의 게이트웨이역할을 하는 서비스 프록시를 생성하는 기법을 제안한다. 서비스 프록시는 항상 모바일 사용자의 위치 데이터베이스와 함께 위치하게 되는데 위치 핸드오프가 발생할 때 모바일 사용자의 위치 데이터베이스도 같이 옮겨지며 그때마다 서비스 프록시가 위치 데이터베이스와 함께 위치하기 위한 서비스 핸드오프가 연속하여 일어나게 된다. 이것은 서비스가 전달될 때 네트워크 비용을 줄이기 위해 프록시를 통하여 사용자 위치정보를 알 수 있게 한다. 네 가지의 기법에 대해 분석한 결과, 중앙 관리형 기법은 모바일 사용자의 SMR(service to mobility ratio)이 낮고 ${\upsilon}$(session to mobility ratio)가 높을 때 좋은 성능을 보이고, 분산 기법은 SMR과 ${\upsilon}$가 모두 높은 경우에 좋은 성능을 나타낸다. 서비스 내용에 대한 전송비용이 높을 때는 정적 앵커 기법이 가장 좋은 성능을 보이지만, 이 경우를 제외하고 거의 모든 조건에서는 동적 앵커 기법이 가장 좋은 성능을 나타낸다. 결과적으로 각기 다른 이동성과 서비스 패턴들을 갖고 있는 사용자들에게 시스템 성능을 최적화하기 위해서는 그 상황에 맞는 차별화된 비용효과적인 위치 및 서비스 관리 기법을 적용해야 한다는 것을 보여준다.

In this paper, we propose a cost-effective location and service management scheme in LTE (Long Term Evolution) networks, which a per-user service proxy is created to serve as a gateway between the mobile user and all client-server applications engaged by the mobile user. The service proxy is always co-located with the mobile user's location database such that whenever the MU's location database moves during a location hand-off, a service hand-off also ensues to co-locate the service proxy with the location database. This allows the proxy to know the location of the mobile user all the time to reduce the network communication cost for service delivery. We analyze four integrated location and service management schemes. Our results show that the centralized scheme performs the best when the mobile user's SMR (service to mobility ratio) is low and ${\upsilon}$(session to mobility ratio) is high, while the fully distributed scheme performs the best when both SMR and ${\upsilon}$ are high. In all other conditions, the dynamic anchor scheme is the best except when the service context transfer cost is high under which the static anchor scheme performs the best. Through analytical results, we demonstrate that different users with vastly different mobility and service patterns should adopt different integrated location and service management methods to optimize system performance.

키워드

참고문헌

  1. 3GPP standardization, "Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN) Overall description Stage 2", TS 36.300 v9.2.0, January 2010, http://www.3gpp.org/
  2. Koichiro Kitagawa, Toshihiko Komine, Toshiaki Yamamoto and Satoshi Konishi, "A Handover Optimization Algorithm with Mobility Robustness for LTE systems", Personal Indoor and Mobile Radio Communications (PIMRC), 2011 IEEE 22nd International Symposium on, pp. 1647-1651, Sept. 2011.
  3. 3GPP standardization, "General packet radio service enhancements for evolved universal terrestrial radio access network access", TS 23.401, 2010, http://www.3gpp.org/
  4. Ing-Ray Chen, Baoshan Gu and Sheng-Tzong Cheng, "On Integrated Location and Service Management for Minimizing Network Cost in Personal Communication Systems", IEEE Trans. on Mobile Computing, pp. 172-192, 2006.
  5. R. Jain and N. Krishnakumar, "Network support for personal information services to PCS users," IEEE Conference on Networks for Personal Communications, pp. 1-7, March 1994.
  6. M. Roussopoulos et al, "Personal-level routing in the mobile people architecture", Proceedings of the USENIX Symposium on Internet Technologies and Systems, Boulder, CO, USA, pp. 165-176, October 1999.
  7. M. H. Dunham and V. Kumar, "Impact of mobility on transaction management", Proceedings of the International Workshop on Data Engineering for Wireless and Mobile Access, MobiDE '99, Seattle, WA, USA, pp.14-21, 1999.
  8. Y. Fan, "General modeling and performance analysis for location management in wireless mobile networks", IEEE Trans. on Computers, Vol. 51, No. 10, pp. 1169-1181, 2002. https://doi.org/10.1109/TC.2002.1039843
  9. I. Widjaja, P. Bosch, and H. La Roche, "Comparison of MME signaling loads for long-term-evolution architectures", In VTC Fall, 2009.
  10. J.S.M. Ho, and I. F. Akyildiz, "Local anchor scheme for reducing signaling costs in personal communications networks", IEEE/ACM Transactions on Networking, Vol. 4, No. 5, pp. 709-725, Oct.1996. https://doi.org/10.1109/90.541319
  11. Yang, S.-R. and Lin, Y.-B. "Performance Evaluation of Location Management in UMTS", IEEE Transactions on Vehicular Technology, pp. 1603-1615, November 2003.
  12. S. Gundavelli et. Al.: "Proxy Mobile IPv6", InternetDraft,draft-sgundave-mip6-proxymip6-00, October 2006.
  13. Akyildiz, I. F., Lin, Y.-B., Lai, W.-R., and Chen, R.-J, "A New Random Walk Model for PCS Networks", IEEE Journal on Selected Areas in Communications, 18(7):1254-1260, July 2000. https://doi.org/10.1109/49.857925
  14. C.E. Perkins, "Mobile IP", IEEE Comm. Magazine, pp. 84-99, May 1997.
  15. J. Xie and I.F. Akyildiz, "A novel distributed dynamic location management scheme for minimizing signaling costs in Mobile IP", IEEE Trans. on Mobile Computing, Vol. 1, No. 3, pp. 163-175, 2002. https://doi.org/10.1109/TMC.2002.1081753
  16. W.C. Peng and M.S. Chen, "A dynamic and adaptive cache retrieval scheme for mobile computing systems", 3rd IFCIS International Conference on Cooperative Information Systems, New York, pp. 251-258, Aug. 1998.
  17. R. Jain, Y.B. Lin, C. Lo and S. Mohan, "A forwarding strategy to reduce network impacts of PCS", 14th Annual Joint Conference of the IEEE Computer and Communications Societies (IEEE INFOCOM '95), pp. 481-489, 1995.
  18. W. Ma and Y. Fang, "Two-level pointer forwarding strategy for location management in PCS networks", IEEE Transactions on Mobile Computing, pp. 32-45, 2002.
  19. I.R. Chen and B. Gu, "Quantitative analysis of a hybrid replication with forwarding strategy for efficient and uniform location management in mobile wireless networks", IEEE Transactions on Mobile Computing, 1998.
  20. Soonghwan Ro, Jinkyu Choe, "A Study on Inter-Domain Support in Proxy Mobile IPv6", KIIT,Vol. 10, No,2
  21. Chanhong Park, Hyeonkyeong Seong, "MIP-RA was used to transform the packet in HMIPv6 and MIH environment Efficient Handover", KAIS, Vol.1, pp.251-254, 2011.