Managing the infoglut in this information age requires more than the traditional and xed computing environment in order to keep up with fast changing technologie. Cellular and mobile communications ooer exibility in accessing and manipulating information without restricting users to speciic locations. While this technology is revolutionary in its approach to managing data, many issues remain to...

Estimating the position of mobile terminals is an important problem for cellular networks. This paper describes low cost methods of locating mobile terminals in urban environments. These methods use data collected during propagation surveys of the network area. It will be shown how the maximum likelihood estimate and minimum mean-square error estimators can be approximated using survey data. Fu...

In recent years, there has been considerable growth in interest in wireless access to wide area data networks at high data rates. This growth has been fuelled by the simultaneous development of the high-speed wired data networks (e.g., the Internet), wide-spread availability of powerful mobile computing devices, rapidly dropping prices for increasingly sophisticated electronic devices, plus the...

Mobile data offloading, often known as Wi-Fi offloading, is the use of complementary network technologies for delivering data originally targeted for cellular networks. Offloading reduces the amount of data being carried on the cellular bands, freeing bandwidth for other users. It is also used in situations where local cell reception may be poor, allowing the user to connect via wired services ...

Cellular networks provide voice and data services to the users with mobility. To deliver services to the mobile users, the cellular network is capable of tracking the locations of the users, and allowing user movement during the conversations. These capabilities are achieved by the location management. Location management in mobile communication systems is concerned with those network functions...

Consumers are demanding world-wide cellular access to the internet. This requires a global standard and effective means of accessing the internet from wireless devices. Integrating the two successful domains, viz, cellular networks and the Internet, provide anytime, anywhere access in third generation (3G) cellular networks. In this paper a hierarchical architecture for integration of cellular ...

Channel allocation algorithms for channelized cellular systems are discussed from a new perspective, viz., fairness of allocation. The concepts of relative and absolute fairness are introduced and discussed. It will be shown that under certain reasonable assumptions, there exists an absolute (max-min) fair carried traffic intensity vector (a vector describing the traffic carried in the cells of...

results the prevalence of excessive mobile phone use was 36.7% on the students. there was a significant relation between the prevalence of excessive mobile phone use and mental health status in general (p > 0.05), and also somatization (p < 0.05), anxiety and depression specifically (p < 0.05), but no significant relation was found between the excessive mobile phone use and social dysfunction (...

In this paper, we discuss the evolution of the mobile communication systems from GSM to LTE (2G to 4G) and the trends in the mobile communication industry. The Global System for Mobile Communication (GSM) is a well established cellular system targeted here due to its engineering success and the large number of users currently using the services. The flexibility of wireless networks over voice a...