非对称通信网络中易变数据的广播调度

Recent advances in wireless sensor networks and GPS have made constantly-evolving data a new type of data which bring a new challenge to traditional data processing methods. Data broadcasting is an effective means for data dissemination in asymmetric communication networks, such as wireless networks. In this paper, definition of the mean uncertainty ratio of data is presented and a broadcasting scheme is proposed for constantly-evolving data dissemination. Simulation results show that the scheme can reduce the uncertainty of the broadcasted constantly-evolving data effectively at the cost of minor increase in data access time, in the case of no transmission error, transmission errors present, and multiple broadcast channels. As a result it benefits the qualities of the query results based on the data.     

“网络协议分析”课程教学改革的探讨

高校师生关系是高校中最主要的人际关系,师生关系的质量直接影响教育教学的成效和学生的身心发展,本文分析了现代高校师生关系不和谐的原因,并提出了构建和谐师生关系的几条途径,从而达到不断提高教学质量的目的。     

《无线网络技术》课程教学改革与实践

国内很多高等院校都在信息相关专业开设了"无线网络技术"课程,但不同学校在课程内容、讲授方法等方面存在较大差异。结合课程知识结构以及教学过程实际情况,从教学内容、教学方式以及实验设置几个方面对"无线网络技术"课程进行教学改革的摸索和创新,收到一定效果,对教学质量的提高起到促进作用。