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The occurrence of a catastrophic natural disaster disrupts all communication system, and it takes a lot of time to recover from that scenario. A temporary ad-hoc communication system is required for post-disaster emergency rescue operations. In developing countries, where very small population of people possesses smart expensive gadgets, a cost effective network solution is required in this regard...
Call Set-up Success Rate (CSSR) is an important Key Performance Indicator (KPI) for mobile network performance analysis. However, obtaining this KPI depends largely on data from the Mobile Network Providers (MNP). Owing to limitations associated with gleaning such data, recent trends seek new methods of gathering data independent of the MNP. Consequently, it is the objective of this paper to provide...
All GSM operators use Key Performance Indicators (KPIs) to judge their network performance and evaluate the Quality of Service (QoS) regarding end user perceived quality. KPIs are becoming increasingly important in the context of network rollouts as well as within mature network optimization cycles. The performance of the mobile network is measured based on several counters describing the most important...
The article presents an indoor localization scheme for mobile devices based on GSM Received Signal Strength fingerprints combined with embedded sensor information and an area site map. Displacements of a mobile user are first estimated using a sensor dead-reckoning approach that adapts stride length to different users and environments, and a dynamically switched orientation estimation scheme responding...
Nowadays the Short Message Service (SMS) is virtually worldwide available, since almost all mobile phones, regardless of their supported features and cellular operators, are able to use such service. However, the SMS is not natively designed to exchange medium/large-sized amount of data and it has been shown that such facility is highly unreliable, especially when some particular conditions occur...
To make cheap voice calls, Voice-over-IP (VoIP) services are often used as an alternative to the traditional telephone service providers. Also on the mobile platform, these VoIP services are becoming increasingly popular due to the increased capabilities and connectivity of mobile devices. Understanding the user's usage behavior and quality assessment of the VoIP service is crucial to optimize the...
This paper addresses the problem of service development based on GSM handset signaling. The aim is to achieve this goal without the participation of the users, which requires the use of a passive GSM receiver on the uplink. Since no tool for GSM uplink capturing was available, we developed a new method that can synchronize to multiple mobile devices by simply overhearing traffic between them and the...
Long Term Evolution uses a new location update (LU) scheme, called a tracking area list (TAL)-based scheme, to overcome the defects of the LU scheme used in 2G and 3G cellular networks. Under the TAL-based LU scheme, each time a user equipment (UE) performs an LU, it is allocated a group of tracking areas, referred to as a TAL, within which the UE can move freely without any LU. The UE performs an...
As a promising technology to address the issue of spectrum scarcity, cognitive radio (CR) has been receiving an increasing attention in recent years and existing works suggested that mobile service band could potentially present reuse opportunities for unlicensed access. In this sense, understanding mobile service's temporal and spatial dynamics can be of great help on spectrum management for mobile...
Malaysia has periodic problems with air quality reaching hazardous levels because of smoke haze. The heavy haze, described as a pall of smoke caused widespread health problems especially among the elderlies, the young and kids. Haze is an atmospheric phenomenon where dust, smoke and other dry particles obscure the clarity of the sky. This haze pollution has serious implications to health as well as...
BH mobile Internet market is mostly presented by 3G data technology. Due to limitations regarding capacity, performances, speed and QoS, new technologies such as IMT-Advanced (4G) have been developed. This article presents an overview and statistics of mobile data usage in different technologies as well as representation of different kind of applications and devices globally and by region underling...
In some extraordinary situations like natural disasters or terrorist attacks, cellular mobile networks may face dramatically increased network traffics. Due to GSM network architecture, the number of available radio traffic channels within a cell is limited and this limitation may cause traffic congestions on such conditions. These congestions may drop the quality of mobile subscriber service channels...
Mozilla Corporation has recently released a Linux-based open source operating system, namely Firefox OS. The arrival of this Firefox OS has created new challenges, concentrations and opportunities for digital investigators. Currently, Firefox OS is still not fully supported by most of the existing mobile forensic tools. Even when the phone is detected as Android, only pictures from removable card...
The Global System for Mobile Communications-Railways (GSM-R) is a radio telecommunication network and the bearer technology for the European Train Control System (ETCS). Both GSM-R and ETCS constitute the European Rail Traffic Management System (ERTMS). GSM was adopted by the International Union of Railways (UIC) because it was the only system in commercial operation with a great potential to fulfill...
This paper describes a novel way of using the hybrid solar and wind energy effectively for pumping solution in rural parts of India. A hybrid generation system consist photo voltaic (PV), wind turbine (WT) and Battery to supply stable power to rural residential loads. DC/DC converters are used to control the power flow to the load and Maximum Power Point Tracker (MPPT) is used for maximum power extraction...
This paper gives an explanatorily idea of connecting mobile phones in a same WIFI system using WLAN(Wireless Local Area Network) Access Point(AP) or P2P(Peer-to-Peer) connection system. By using this IP based local connection system, mobile phone users can share files, photos, send messages and even call other mobile device free of cost. The system will also have a feature to automatically detect...
In the access part of the Future Internet the fixed and mobile access is expected to converge not only to better utilize the resources, but also to decrease the power consumption, to increase the availability and also to improve the QoS/QoE of uesrs.
In Pakistan, millions of people have access to internet and now it has become essential part of their lives. It is now a driving force for innovation of all industries. After arrival of wireless service providers, internet users are growing rapidly. On the other hand, internet is still just a source of information sharing and social interaction. Its role in trade and business is limited. Some business...
Since its introduction in 1992, Global System for Mobile Communications (GSM) has evolved to become a worldwide standard in mobile telephony. Security in GSM, albeit being one of the most important issues, has not yet been scrutinized to a level it deserves owing mainly to the expensive hardware requirements and lack of thorough understanding of GSM protocols in general. This scenario is changing...
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