恶劣环境下无线网络数据通信策略研究与应用

高昊江，杨 晟，张宜生，梁书云

(华中科技大学模具技术国家重点实验室，武汉 430074)
摘要：恶劣环境下无线信号会出现时断时续的不稳定现象，导致传统的保持在线连接的通信方法不能正常工作。为此，提出了一种“信号－时间窗”分析指引下的基于FTP协议传送经混沌加密及压缩处理的XML文档的数据通信策略，给出了其在恶劣信道下成功应用的实例。系统投入运行半年多的实践结果表明，该通信策略能很好地解决恶劣环境下的数据通信问题，保证了通信的敏捷性、完整性、保密性和可靠性，在恶劣通信条件下或异构系统之间的数据通信领域具有相当的应用价值和参考意义。
关键词：恶劣环境；数据通信策略；混沌加密；XML；系统安全
Research and Application of Wireless Network Data Communication Strategy in Adverse Environments
GAO Haojiang, YANG Sheng, ZHANG Yisheng, LIANG Shuyun
(State Key Lab of Plast. Form. Simulation, Huazhong University of Science and Technology, Wuhan 430074)
【Abstract】In adverse environments, wireless communication speed is slow and often breaks down. It causes the traditional keeping-in-connectioncommunication methods do not work. To resolve this problem, a communication strategyis presented, which uses signal time window and FTP totransmit chaotic-encrypted and compressed XML document. The application example is also given, which has been put to use for more than half ayear. The experiments and application results show that the proposed communication strategydoes good work at bad communication conditions, andhas the advantages of agility, completeness, security and stability, which can be widely applied in the data communication fields under badcommunication conditions or between different systems.
【Key words】Adverse environments; Data communication strategy; Chaotic encryption; XML; System security

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