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...

background: as the use of mobile phones is increasing, public concern about the harmful effects of radiation emitted by these devices is also growing. in addition, protection questions and biological effects are among growing concerns which have remained largely unanswered. stem cells are useful models to assess the effects of radiofrequency electromagnetic fields (rf-emf) on other cell lines. ...

A5/1 stream cipher is used in Global System for Mobile Communication(GSM) phones secure communication. encrypts the message transferred from a mobile user. In this paper, we present implementation of cryptanalytic on techniques such as minimized state recovery recovering session key. The number transitions/updations needed S to reoccur maintained lookup table. This table can be recover initial ...

BACKGROUND AND AIMS To observe the effects of mobile phone use in the vicinity of medical devices used in a critical care setting. SUBJECTS AND METHODS Electromagnetic interference (EMI) was tested by using two types of mobile phones - GSM and CDMA. Mobile phones were placed at a distance of one foot from three medical devices - syringe pump, mechanical ventilator, and the bedside monitor - i...

Recognition of everyday physical activities is difficult due to the challenges of building informative, yet unobtrusive sensors. The most widely deployed and used mobile computing device today is the mobile phone, which presents an obvious candidate for recognizing activities. This paper explores how coarse-grained GSM data from mobile phones can be used to recognize high-level properties of us...

Dear Editor, Recently, a paper was published (Salama et al., 2008) describing the effects of electromagnetic fields from a mobile phone on testicular functions in New Zealand White (NZW) rabbits. We have a number of concerns; the two most important ones deal with the exposure conditions and the biological effects respectively. Exposure was carried out by a GSM mobile phone at 800 MHz in ‘standb...

Mobile communication is an essential part of our daily lives. Therefore, it needs to be secure and reliable. In this paper, we study the security of feature phones, the most common type of mobile phone in the world. We built a framework to analyze the security of SMS clients of feature phones. The framework is based on a small GSM base station, which is readily available on the market. Through ...

Cellular phones have become a ubiquitous means of communications with over 5 billion users worldwide in 2010, of which 80% are GSM subscribers. Due to their use of the wireless medium and their mobile nature, those phones listen to broadcast communications that could reveal their physical location to a passive adversary. In this paper, we investigate techniques to test if a user is present with...

We describe the WebSIM, an approach that integrates GSM SIMs into the Internet. The underlying idea is to implement a Web Server inside a SIM, and to allow for transparent access to it from the Internet. The contribution of our approach is that a SIM, which is currently a security module (smartcard) fitted in a GSM mobile phone, becomes also a personal security server in the Internet. Like any ...

INTRODUCTION The use of mobile phones has become widespread in recent years. Although beneficial from the communication viewpoint, the electromagnetic fields generated by mobile phones may cause unwanted biological changes in the human body. OBJECTIVE In this study, we aimed to evaluate the effects of 2100MHz Global System for Mobile communication (GSM-like) electromagnetic field, generated b...