应急通信系统中快速二层切换协议的设计与实现

李方敏; 曾乐; 沈逸; 张韬

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

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应急通信系统中快速二层切换协议的设计与实现

学术论文 | 更新时间：2024-06-05

- 应急通信系统中快速二层切换协议的设计与实现
- Design and implementation of a layer-II fast handoff protocol in emergency communication system
- 通信学报 2017年38卷第Z2期页码：8-16
- 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：
  
  [ "李方敏（1968-），男，湖南涟源人，博士，长沙学院教授、博士生导师，主要研究方向为无线网络通信与智能感知、机器学习与大数据处理。" ]
  [ "曾乐（1991-），男，四川泸州人，武汉理工大学硕士生，主要研究方向为无线网络通信。" ]
  [ "沈逸（1993-），男，浙江湖州人，武汉理工大学硕士生，主要研究方向为无线网络通信。" ]
  [ "张韬（1979-），男，湖北襄阳人，博士，长沙学院讲师，主要研究方向为无线网络通信与智能感知、机器学习与大数据处理。" ]
- 基金信息：
  
  国家自然科学基金资助项目;The National Natural Science Foundation of China(61373042);长沙市科技计划基金资助项目;Changsha Science and Technology Project(ZD6101004)
- DOI：10.11959/j.issn.1000-436x.2017260
  中图分类号： TP393
- 网络首发：2017-11，
  
  纸质出版：2017-11-25
- 稿件说明：
移动端阅览
李方敏, 曾乐, 沈逸, 等. 应急通信系统中快速二层切换协议的设计与实现[J]. 通信学报, 2017,38(Z2):8-16.

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.
李方敏, 曾乐, 沈逸, 等. 应急通信系统中快速二层切换协议的设计与实现[J]. 通信学报, 2017,38(Z2):8-16. DOI： 10.11959/j.issn.1000-436x.2017260.

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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Keywords

references

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