In Europe and North America, the most widely used stream cipher to ensure privacy and confidentiality of conversations in GSM mobile phones is the A5/1. In this paper, we present a new attack on the A5/1 stream cipher with a minimum time complexity of around 2 and an average complexity of 2, which is much less than the brute-force attack with a complexity of 2. The attack has a 100% success rat...

Whip type antennas are probably the most commonly used antennas in portable RF systems, such as cordless and cellular phones, RF enabled laptop computers, , and handheld computers. Whip antennas are almost always mounted on the chassis which contains the radio and other electronics. Normally in mobile phone two set of antenna used for receiving different application such as GSM and GPS. In this...

The paper presents a methodology of transmitting voice in SMS (Short Message Service) over GSM netw ork. Usually SMS contents are text based and limited to 140 bytes. It supports national and international roaming, but also supported by other telecommunication such as TDMA (Time Division Mult iple Access), CDMA (Code Division Mult iple Access) as well. It can sent/ receive simultaneously w ith ...

In this paper, we introduce a compact system for fusing location data with data from simple, low-cost, non-location sensors to infer a user’s place and situational context. Specifically, the system senses location with a GSM cell phone and a WiFi-enabled mobile device (each running Place Lab), and collects additional sensor data using a 2” x 1” sensor board that contains a set of common sensors...

2088 ISSN:2278 – 7798 All Rights Reserved © 2015 IJSETR Abstract— In this paper children tracking system based on android terminals is proposed. Recently, all over the world crime against the children in the age of 14 to 17 years is more popular. Parent’s always worry about their children whenever they are outside from the home. In this paper, the proposed system consists of two sides out of th...

Portable devices like laptops, palm tops, PDAs or mobile phones have become widespread. Similarly network functionality like GSM, Bluetooth or WLAN has become a standard. Nevertheless, not many applications take mobility into account. An application and its communication functions are tightly coupled and the applications assume that network behavior does not change during the application use. H...

Recent advances in wireless technology and decreasing costs of portable devices strongly contributed to increase the popularity of mobile communications. Wireless communication and device integration have lead to the so-called nomadic computing (or mobile computing) where portable devices (such as laptop and handheld computers) allow users to access Internet and data on their home or work compu...

This paper describes the development of ICT-Based Mobile Telemedicine system with multi communication links for both urban and rural areas in Indonesia. The mobile telemedicine system is particularly needed in many remote and underserved areas in Indonesia, such as Sukabumi. The system has two main units, namely a Mobile telemedicine unit (patient side) and a base unit ( doctors side). Data tra...

Multi-user communication and interaction via public displays together the pervasive and seamless access to the WWW in public areas via mobile phones or handheld devices is enabled via the WebWall system. A software framework for the operation of WebWalls has been developed, strictly separating WebWall access technologies (like HTTP, email, SMS, WAP, EMS, MMS or even simple paging protocols foun...