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Article Navigation >  Journal of University of Electronic Science and Technology of China  > 2005  >  34(4): 456-459

WU Le, ZHU Li-dong, WU Shi-qi. A Handoff Scheme in Multi-Service LEO Satellite Systems[J]. Journal of University of Electronic Science and Technology of China, 2005, 34(4): 456-459.
Citation: WU Le, ZHU Li-dong, WU Shi-qi. A Handoff Scheme in Multi-Service LEO Satellite Systems[J]. Journal of University of Electronic Science and Technology of China, 2005, 34(4): 456-459.
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A Handoff Scheme in Multi-Service LEO Satellite Systems

  • 1.

    School of Communication and Information Engineering,UEST of China Chengdu 610054

  • Received Date: 2004-04-26
  • Publish Date: 2005-08-15
  • A handoff scheme is introduced in this paper, which considers the dynamic thresholds and preemptive priority level in intergrated voice and data LEO(Low Earth Orbit) satellite systems. Taking into account the characteristic of data calls and the higher priority of handoff voice calls, this scheme gives handoff voice calls a preemptive priority with combination of queuing strategy. A Guard Channel scheme based on dynamic thresholds is used in the scheme. It guarantees the priority and fairness between new calls and handoff calls. By simulation, it can be seen through comparison with the non-priority and guard channel handoff scheme that the proposed handoff scheme improves the performance of system in grade of service and channel utilization.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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A Handoff Scheme in Multi-Service LEO Satellite Systems

  • 1. School of Communication and Information Engineering,UEST of China Chengdu 610054
  • Received Date: 2004-04-26
  • Publish Date: 2005-08-15

Abstract: A handoff scheme is introduced in this paper, which considers the dynamic thresholds and preemptive priority level in intergrated voice and data LEO(Low Earth Orbit) satellite systems. Taking into account the characteristic of data calls and the higher priority of handoff voice calls, this scheme gives handoff voice calls a preemptive priority with combination of queuing strategy. A Guard Channel scheme based on dynamic thresholds is used in the scheme. It guarantees the priority and fairness between new calls and handoff calls. By simulation, it can be seen through comparison with the non-priority and guard channel handoff scheme that the proposed handoff scheme improves the performance of system in grade of service and channel utilization.

WU Le, ZHU Li-dong, WU Shi-qi. A Handoff Scheme in Multi-Service LEO Satellite Systems[J]. Journal of University of Electronic Science and Technology of China, 2005, 34(4): 456-459.
Citation: WU Le, ZHU Li-dong, WU Shi-qi. A Handoff Scheme in Multi-Service LEO Satellite Systems[J]. Journal of University of Electronic Science and Technology of China, 2005, 34(4): 456-459.
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