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Dynamic Scheduling for Scalable Media Transmission over cdma2000 1xEV-DO Broadcast and Multicast Networks

  • Kyungtae Kang
  • Jinsung Cho
  • Yongwoo Cho
  • Heonshik Shin
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3462)

Abstract

The cdma2000 1xEV-DO mobile communication system provides broadcast and multicast services (BCMCS) to meet an increasing demand for multimedia data services. Currently, broadcast and multicast streams are scheduled using a slot-based static algorithm, which fails to support dynamic environments where broadcast contents are added or removed on-line. We propose a dynamic packet-scheduling algorithm that works with a retransmission scheme to enable scalable and adaptive service across cdma2000 1xEV-DO BCMCS environments. Integrated with earliest deadline first (EDF) real-time scheduling, the proposed algorithm not only adapts efficiently to dynamic contexts but also satisfies the real-time requirements of broadcast streams. Furthermore, by exploiting the fine granular scalable (FGS) characteristics of the MPEG-4 Part 2 standard, our scheme can adapt to a changing resource environment more flexibly. Simulation results show a significant improvement in average playback quality.

Keywords

cdma2000 1xEV-DO BCMCS earliest deadline first (EDF) resource allocation fine granular scalable (FGS) 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Kyungtae Kang
    • 1
  • Jinsung Cho
    • 2
  • Yongwoo Cho
    • 1
  • Heonshik Shin
    • 1
  1. 1.School of Computer Science and EngineeringSeoul National UniversitySeoulKorea
  2. 2.Dept. of Computer EngineeringKyung Hee UniversityYounginKorea

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