A multi-level satellite channel allocation algorithm for real-time VBR data

Integrated services over a shared satellite channel need a MAC protocol that is able to deal with real-time traffic without substantially affecting the efficiency of the shared medium. Because of its bursty nature, MPEG coded VBR video transmission is one of the most challenging real-time applications. In this paper we analyze the statistical performance of a simple allocation method for VBR traffic by using an accurate statistical model of an MPEG-2 VBR coded movie, whose traffic exhibits a peak to mean ratio of about 4. The results were obtained both analytically and by simulation, and show that our method is suitable for transmitting non-interactive video and best-effort t raffic on the same satellite link. The e fficiency o f the proposed method shows no dependency on the statistical properties of the input traffic.

[1]  Nedo Celandroni,et al.  A simulation tool to validate and compare satellite TDMA access schemes , 1999, Telecommun. Syst..

[2]  T. Le-Ngoc,et al.  Performance of combined free/demand assignment multi-access (CFDAMA) protocol with pre-assigned request slots in integrated voice/data satellite communications , 1995, Proceedings IEEE International Conference on Communications ICC '95.

[3]  Marco Conti,et al.  Study of the Impact of MPEG-1 Correlations on Video-Sources Statistical Multiplexing , 1996, IEEE J. Sel. Areas Commun..

[4]  Hui Zhang,et al.  Service disciplines for guaranteed performance service in packet-switching networks , 1995, Proc. IEEE.

[5]  Nedo Celandroni,et al.  MPEG-2 Coded Video Traces Transmitted Over a Satellite Link: Scalable and Non-Scalable Solutions in Rain Fading Conditions , 2004, Multimedia Tools and Applications.

[6]  Lixia Zhang,et al.  A Two-Tier Resource Management Model for Differentiated Services Networks , 1998 .

[7]  Marco Conti,et al.  MPEG-2 variable bit rate coding algorithm: analysis and modeling , 1996, Other Conferences.

[8]  Laurie Cuthbert,et al.  Improving the delay performance of ‘best effort’ traffic over ATM satellite networks , 1999 .

[9]  Marco Conti,et al.  A bandwidth assignment algorithm on a satellite channel for VBR traffic , 1997 .

[10]  Nedo Celandroni,et al.  DRIFS-TDMA: a proposal for a satellite access distributed-control algorithm for multimedia traffic in a faded environment , 1997 .

[11]  T. Le-Ngoc,et al.  Performance analysis of combined free/demand assignment multiple access (CFDAMA) protocol for packet satellite communications , 1994, Proceedings of ICC/SUPERCOMM'94 - 1994 International Conference on Communications.

[12]  D. Estrin,et al.  RSVP: a new resource reservation protocol , 2001 .

[13]  E. Gregori,et al.  Traffic characterization and bandwidth allocation for MPEG-2 VBR video traffic , 1997, GLOBECOM 97. IEEE Global Telecommunications Conference. Conference Record.

[14]  Laurie Cuthbert,et al.  Framework for supporting real time VBR traffic over satellite networks , 1999 .

[15]  Nedo Celandroni,et al.  Feeders-TDMA: a distributed-control algorithm for satellite channel capacity assignment in a mixed traffic and faded environment , 1997 .

[16]  Nedo Celandroni,et al.  FODA/IBEA‐TDMA: A flexible fade countermeasure system for integrated services in user‐oriented networks , 1992 .