With the rapid development of wireless communication technology,there is a urge requirement for the con-vergence of wireless and Internet. But the high BER, fading and occasionally occurred handoff in wireless network...
详细信息
With the rapid development of wireless communication technology,there is a urge requirement for the con-vergence of wireless and Internet. But the high BER, fading and occasionally occurred handoff in wireless networksheavily deteriorate the performance of traditional communication protocols such as TCP/UDP. This paper provides anoverview of the techniques which can improve data transmission over wireless links ,defines a taxonomy based on dif-ferent protocol layers ,and finally discusses the trends in this field.
由于程序的分布运行,测试分布式程序必须同时考虑并发特性和运行环境.介绍了一个面向Java语言的分布式程序测试系统JDPT(Java-oriented distributed program testing system).JDPT基于运行环境定义事件,通过事件序列记录分布式程序的运...
详细信息
由于程序的分布运行,测试分布式程序必须同时考虑并发特性和运行环境.介绍了一个面向Java语言的分布式程序测试系统JDPT(Java-oriented distributed program testing system).JDPT基于运行环境定义事件,通过事件序列记录分布式程序的运行过程,并定义事件约束检测可行事件序列集的有效性.通过该技术,JDPT可以有效地判断程序在运行环境中并发执行的正确性,适用于跨平台的Java程序测试.
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