The broadcast nature of radio medium in GSM networks makes them more vulnerable to various attacks. Any attacker can have complete control over the communication channel, listen to phone calls, read email, and spy on whatever data has been sent via GSM mobile communication system. This paper introduces a middleware security system that aims to protect the GSM communication channel and minimize ...

Due to the recent growth in the demand of mobile communication services in several typical environments, the development of efficient systems for providing specialized services has become an important issue in mobile communication research. An important sub-problem in this area is the base-station placement problem, where the objective is to identify the location for placing the basestations. M...

Enhanced Quality of Service (QoS) and satisfaction of mobile phone user are major concerns of a service provider. In order to manage network efficiently and to provide enhanced end – to – end Quality of Experience (QoE), operator is expected to measure and analyze QoS from various perspectives and at different relevant points of network. The scope of this paper is measurement and statistically ...

The femtocell concept aims to combine fixed-line broadband access with mobile telephony using the deployment of low-cost, low-power third generation (3G) base stations in the subscribers' homes. While the self-configuration of femtocells is a plus, it can limit the quality of users and reduce the efficiency of the network, based on outdated allocation parameters such as signal power level. To t...

A large number of passengers in Austria commute on a daily basis by using High Speed Trains (HSTs). Nowadays, a large amount of passengers can be considered active mobile phone users. Due to increased numbers of mobile users, the capacity problem is considerably introduced. To deal with this issue, the railway company in Austria (ÖBB) has implemented Wi-Fi on-board the railjet high speed trains...

the main objective of this paper is to argue how the mobile phones have transformed the iranian lifestyle and how the arrival of mobiles has been a catalyst for revolting behavior, and has launched a new consumer behavior and has changed our relationships. the paper explains how the people's behavior has developed a whole new social code in iran. it is argued that the social value of being able...

We propose a decentralized downlink scheduling protocol for wireless cellular networks that allows each base station to control its transmission power. On the beginning of each scheduling period, neighbor base stations exchange their local system states, i.e., channel, traffic and position statistics of their local mobile users. But on each slot of the current scheduling period, the base statio...

Breast cancer is the most common malignancy among women, both in the developed and developing countries. Women with mutations in the BRCA1 and BRCA2 genes have an increased risk of breast and ovarian cancers. Recent studies show that short-wavelength visible light disturb the secretion of melatonin and causes circadian rhythm disruption. We have previously studied the health effects of exposure...

Mobile Wimax is a new technology which has all the feature in order to be used increasingly in the near future due to its high speed capabilities. Security for Mobile Wimax is an area that needs to be focused upon so as to protect its functionality. Mobile WiMAX systems are based on the IEEE 802.16e-2005 standards which involve a physical (PHY) layer and the medium access control (MAC) layer fo...

Mobile communication via high-altitude platforms operating in the stratosphere is an idea that has been on table for decades. In past few years, however, with recent advances technology and parallel progress standardization regulatory bodies like 3rd Generation Partnership Project (3GPP) International Telecommunications Union (ITU), these ideas have gained considerable momentum. this article, w...