In this paper, we discuss security issues associated with mobile telephone networks and focus on the unique issues that appear due to the mobility of the user. We provide an overview of how some of these issues are addressed in the second-generation mobile network GSM and consider some of the possible shortcomings of that network. We then compare security features in GSM with those implemented ...

Gas hydrates have lately received increased attention as a potential future energy source, which is not surprising given their global and widespread occurrence. This article presents an integrated study of the Nyegga site offshore mid-Norway, where a gas hydrate prospect is defined on the basis of a multitude of geophysical models and one shallow geotechnical borehole. This prospect appears to ...

Voice quality assessment is an emergent aspect in Global System for Mobile Communications (GSM) network. The evolution of GSM also able in principle to take benefit from end to end services.GSM network inherently include elements such as noisy intermediate equipments that degrade the quality of transmitted voice signal.GSM network presents an alternate method to improve quality and customer exp...

This paper explains the cause of nonlinearity in floor attenuation hither to left unexplained. The performance degradation occurring in air interface for GSM signals is quantitatively analysed using the concept of Radiating Columns of buildings. The signal levels were measured using Wireless Network Optimising Drive Test Tool (E6474A of Agilent Technologies). The measurements were taken in refl...

This paper describes an architecture and protocol for making anonymous mobile conference calls. A number of examples exist where multiple users may wish to communicate in an anonymous manner, such as anonymous virtual support groups (e.g Alcoholics Anonymous). Anonymous group identification schemes coupled with the novel idea of Virtual Numbers, allows for identification to a conference call fa...

<p>Global positioning system (GPS) tracker is an innovative technology that able to track the position of vehicle using global satellite system. In this paper, design derived from and for mobile communication (GSM) interface with use Arduino Uno board as platform proposed presented. Technology in Arduino, GSM, GPS studied.GPS module receives coordinates satellite. The are sent users form ...

Spatial modulation (SM) is a transmission scheme where only one transmit antenna is active at any time instant. It thus reduces interchannel interference (ICI) and receiver complexity over traditional multi-antenna systems. However, the spectral efficiency of SM is low. To improve the spectral efficiency, generalized spatial modulation (GSM) can be used. In this paper, we propose to apply the A...

This paper presents a new development of mobile communication for application to remote data transmission and control. The concept of G, including global positioning system, global system for mobile (GSM), and geographic information system, is proposed. In this paper, a GSM real-time control system for data uplink and downlink remote terminals is considered. The proposed system can be implement...