为降低开发实时多任务控制系统PLC 软件的复杂性, 提高软件开发效率和质量,
把架构和对象技术引入了PLC 软件开发. 结合对象技术和控制系统特点, 强调了抽象对象的概念 …

Dimensioning radio resources in GSM/GPRS networks is particularly important because of
the presence of mixed traffic: voice and data. Appropriate models are required especially …

This paper aims at analysis efficiency in estimating the performance of tree connected
servers. We use a queuing model to represent their equivalent performance and service …

This research work is aimed at the study of arrival rate and holding time used in mobile
communication networks, also to determine the best suitable statistical probability …

The presence of mixed traffic (ie, voice and data) in GSM/GPRS networks raises many
problems regarding dimensioning aspects. An important and critical element of these …

Most of current cellular networks are designed for transmitting packet data and voice
services. Several types of traffic such as voice, WAP, Web, FTP and E-mail with different …

The Global System of Mobile communication (GSM) industry has continually experienced
remarkable growth in all facets since its inception worldwide and even much more in Nigeria …