Design and implementation of a layer-II fast handoff protocol in emergency communication system

Fang-min LI; Le ZENG; Yi SHEN; Tao ZHANG

doi:10.11959/j.issn.1000-436x.2017260

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Design and implementation of a layer-II fast handoff protocol in emergency communication system

Papers | 更新时间：2024-06-05

- Design and implementation of a layer-II fast handoff protocol in emergency communication system
- Journal on Communications Vol. 38, Issue Z2, Pages: 8-16(2017)
- 作者机构：
  
  1. 长沙学院计算机工程与应用数学学院，湖南长沙 410022
  2. 武汉理工大学信息工程学院，湖北武汉 430070
- 作者简介：
- 基金信息：
- DOI：10.11959/j.issn.1000-436x.2017260
  CLC： TP393
- Online First：2017-11，
  
  Published：25 November 2017
- 稿件说明：
移动端阅览
Fang-min LI, Le ZENG, Yi SHEN, et al. Design and implementation of a layer-II fast handoff protocol in emergency communication system[J]. Journal on Communications, 2017, 38(Z2): 8-16.
DOI：

Fang-min LI, Le ZENG, Yi SHEN, et al. Design and implementation of a layer-II fast handoff protocol in emergency communication system[J]. Journal on Communications, 2017, 38(Z2): 8-16. DOI： 10.11959/j.issn.1000-436x.2017260.

摘要

传统的应急通信系统存在机动性差、网络带宽窄、对实时型业务支持较差等问题；更为严重的是，当移动终端在应急通信系统的多个骨干节点间移动时，其较大的切换时延和固定的触发切换判决门限严重限制了高速传输的数据业务。针对这一现状，设计了适用于快速切换环境的采用多频分层分簇网络结构的应急通信系统，并提出一种适用于该网络结构的快速二层切换协议，以满足应急通信系统中终端的实时型业务数据传输对越区切换的严格要求，根据终端的移动速率自适应调整触发切换判决门限。

Abstract

Immobility

limited bandwidth and poor support to real-time service are common shortcomings in traditional emergency communication system.Moreover

the data transmission speed is highly limited in high-speed services by the long handoff delay and fixed handoff trigger threshold when the mobile terminals moving between network nodes.In order to overcome these shortcomings

a new emergency communication system with multifrequency hierarchical clustering structure was designed.A new layer-II fast handoff protocol was designed for such network structure to deal with handoff issue in real-time services.In this handoff protocol

the handoff trigger threshold is self-adaption based on the moving velocity of mobile terminals.

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references

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