Journal of Korean Society of Industrial and Systems Engineering (산업경영시스템학회지)

Society of Korea Industrial and System Engineering (한국산업경영시스템학회)
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A Suitable Handoff Scheme for Time Sensitive Service in a W-ATM Network

무선 ATM 망에서 Time Sensitive Service에 적합한 Handoff 방법에 관한 연구

  • Joo, Jong-Hyuk (Dept. of Industrial & Information Systems Engineering, Cheongju University)
  • 주종혁 (청주대학교 산업정보시스템공학과)
  • Published : 2005.12.31
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Abstract

In general, cell transmission delay is more sensitive for real time video service rather than cell losses in a wireless ATM network. Existing handoff schemes, which are emphasizing the prevention of cell losses, have limitations in cell transmission delay to satisfy QoS. In this paper, we propose a scheme to minimize transmission delay generated during the handoff and to maintain the sequence of cells. Transmission delay can be reduced by transmitting ATM cells with low CLP(i.e., CLP=0) prior to others and by discarding cells with high CLP(i.e., CLP= 1). The simulation results show that the proposed scheme is suitable for delay sensitive real time VBR service as well as fast handoff by giving high CLP to less meaningful MPEG frames.

Keywords

References

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