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An Transport Layer Vertical Handover Approach for Video Services in Overlay Network Environments

오버레이 네트워크 환경에서 비디오 서비스를 위한 트랜스포트 계층에서의 수직 핸드오버 방안

  • 장문정 (이화여자대학교 대학원 컴퓨터학과) ;
  • 이미정 (이화여자대학교 공과대학 컴퓨터학과)
  • Published : 2007.04.30

Abstract

The next generation communication environment consists of various wireless access networks with distinct features that are configured as an overlay topology. In the network environments, the frequency of hand overs should be minimized and the error propagation should be solved in order to provide high-quality multimedia services to mobile users. Therefore, we propose an performance enhancement approach, based on mSCTP, that provides high quality multimedia services to mobile users by ameliorating the error propagation problem. We utilizes the following four functions: 1) the separation of transmission paths according to the types of frames. 2) retransmission strategy to minimize the loss rate of frames, 3) Foced vertical handover execution by utilizing bicasting, 4) using the stability period in order to reduce the effect of the ping pong phenomenon. The simulation results show that the proposed approach provides seamless multimedia service to mobile users by achieving error resilience.

차세대 네트워크는 다양한 특성을 가진 무선 액세스 네트워크들로 구성되는 오버레이 네트워크 형태로 구성된다. 이와 같은 네트워크 환경에서 이동 사용자에게 멀티미디어 서비스를 고품질로 제공하기 위해서는 핸드오버 횟수를 최소화하고 오류전파문제를 해결해야 한다. 이에 본 논문에서는 mSCTP (mobile Stream Control Transmission Protocol)을 기반으로 오류전파문제를 개선함으로써 오버레이 네트워크 환경에서 종단 간 수직 핸드오버 시 이동 사용자에게 고품질의 멀티미디어 서비스를 제공하는 방안을 제안한다. 제안하는 방안은 다음 4가지 기능을 이용한다. (1) 멀티미디어 프레임의 전송 경로를 프레임 유형별로 분리, (2) 멀티미디어 프레임 손실률을 최소화하는 재전송 정책, (3) 바이캐스팅 (bicasting)을 통한 Forced 수직 핸드오버 수행, (4) 핑퐁 현상이 성능에 미치는 영향을 줄이기 위한 안정기간 사용, 시뮬레이션을 통해 제안하는 방안은 오류복원력을 달성함으로써 이동 사용자에게 고품질의 멀티미디어 서비스를 제공함을 알 수 있었다.

Keywords

References

  1. Joint Video Team (JVT) of ISO/IEC MPEG and ITU-T VCEG, 'Joing Final Commitee Draft (JECD) of Joint Video Specification (ITU-T Rec. H.264 - ISO/IEC 14496 10 AVC)', Doc. JVT D157, Jul., 2002
  2. International Organization for Standardization, Overview of the MPEG-4 Standard, Dec. 1999
  3. H. Kim, J. Yun, et al., 'Dynamic GOP structure selection to support QoS in vertical handoff,' Proc. of IEEE ISCE, Jun, 2005 https://doi.org/10.1109/ISCE.2005.1502377
  4. Y. Chang, C. Huang, et al., 'Error propagation analysis and concealment strategy for MPEG 4 video bitstream with data partitioning,' Proc. of IEEE ICME, Aug., 2001
  5. Ahmed Al, et al., 'A transport level unequal error protection mechanism for wireless interactive video,' Proc. of IEEE MILCOM, Oct., 2004 https://doi.org/10.1109/MILCOM.2004.1493282
  6. J. McNair and Z. Fang, 'Vertical handoffs in fourth-generation multinetwork environment,' IEEE Wireless Communications, Vol.11, pp.8-15, Jun., 2004 https://doi.org/10.1109/MWC.2004.1308935
  7. U. Varshney, and R. Jain, 'Issues in emerging 4G wireless networks.' IEEE Computer, Vol.34, pp.94-96, Jun., 2001 https://doi.org/10.1109/2.953469
  8. H. Badis and K. Agha, 'Fast and efficient vertical handoffs in wireless overlay networks,' Proc. of IEEE PIMRC, Sept., 2004
  9. S. Sharma, et al., 'Omnicon:a mobile ip based vertical handoff system for wireless LAN and GPRS links,' Proc. of IEEE ICPP, 2004
  10. G. Liu and C. Zhou, 'HCRAS: A novel hybrid internetworking architecture between WLAN and UMTS celular networks,' Proc. of IEEE CCNC, Jan., 2005 https://doi.org/10.1109/CCNC.2005.1405200
  11. L. Ma, F. Yu and V. C. Leung, 'A New Method to Support UMTS/WLAN Vertical Handover Using SCTP,' IEEE Wireless Communications, Aug., 2004 https://doi.org/10.1109/MWC.2004.1325890
  12. A. Hasswa, N, Nasser and H. Hassanein, 'Performance Evaluation of a Transport Layer Solution for Seamless Vertical Mobility,' International Conference on Wireless Networks, Communications and Mobile Computing, Jun. 2005 https://doi.org/10.1109/WIRLES.2005.1549472
  13. Y. Gyekey and J. Agbinya, 'Vertical handoff between WWAN and WLAN,' Proc. of IEEE ICN/ICOINS/MCL, Apr., 2006 https://doi.org/10.1109/ICNICONSMCL.2006.224
  14. M. Riegel and M. Tuexen, 'Mobile SCTP' draft-reigel-tuexen-mobile-setp-04.txt, Oct., 2004
  15. R. Stewart, et al., 'Stream Control Transmission Protocol', RFC 296, Oct., 2000
  16. J. W. Lee, B. W. Dickinson, 'Rate Distortion Optimized Frame Type Selection for MPEG Encoding,' IEEE Trans. Circuits Syst. Video Technol., Vol. 7, No. 3, pp. 501-510 Jun., 1997 https://doi.org/10.1109/76.585929
  17. J. Katto, 'Mathematical anaylsis of MPEG compression capability and its application to rate control,' ICIP 95, pp. 555-558, Oct., 1995 https://doi.org/10.1109/ICIP.1995.537539
  18. M. Chang, M. Lee, and S. Koh, 'Transport Layer Mobility Support Utilizing Link Signal Strength Information, 'IEICE Transaction on Communications. Vol. E87 B. No.9 pp.2548-2556, Sep., 2004
  19. T.S. Rappaport, Wireless Communications, Principles and practice, Prentice Hall, 1996
  20. M. Bernaschi, F. Cacace, L. Vollero, 'Adaptive Streaming On Heterogeneous Networks,' in Proc. Of ACM WMuNeP, Oct., 2005 https://doi.org/10.1145/1089737.1089741
  21. S. Kashihara, T. Nishiyama, K. Iida, 'Path Selection Using Active Measurement in Multi-Homed Wireless Networks', in Proc. Of IEEE SAINT, Jan., 2004 https://doi.org/10.1109/SAINT.2004.1266127
  22. http://www.isi.edu/ns/
  23. Y. Chan, T. Randhawa, S. Hardy, 'Traffic Prediction Based Access Control Using Different Video Traffic Models in 3G CDMA High Speed Date Networks', in Proc. of ACM IWCMC, Jul., 2006 https://doi.org/10.1145/1143549.1143595