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An efficient authenticating mobile user protocol for wireless communications was proposed in this paper. The most important feature of our proposed protocol has the property of authenticating mobile user. In this scheme, the mobile stations must be authenticated by visit network. We use the pre-computing, unbalanced technique in which mobile stations have far less computational and communication requirements...
Nowadays, Heart related diseases are on the rise. Cardiac arrest is quoted as the major contributor to sudden and unexpected death rate in the modern stress filled lifestyle around the globe. A system that warns the person about the onset of the disease earlier automatically will be a boon to the society. This is achievable by deploying advances in wireless technology to the existing patient monitoring...
Tele-health is an inter-disciplinary area where the delivery of health, medical information and services over large and small distances is possible by combining electronic information with communication technologies. Deaths from cardiovascular diseases have decreased substantially over the past two decades, largely as a result of advances in acute care and cardiac surgery. These developments have...
M2M has been integrated into the national "Information Industry of science and technology develops 11th Five-Year Plan and 2020 long-term planning framework" as a key supported project. Network communication as the core of M2M technologies also restricts its development. SimCom Inc. produced SIM4100 is a TD-SCDMA/GSM mobile communication module solution. The article designs the minimal M2M...
A new technique developed at ESPCI ParisTech should allow cellular received signal strength fingerprints to play an important role in localization systems for regions that are not well covered by GPS. The article describes the ARPEGEO project, initiated to evaluate the impact of full-band GSM fingerprints analyzed with modern machine learning techniques. Results on indoor localization, as well as...
GSM networks consist of cells that can support mobile users. Due to this mobility, it is expected that the network model can be different than that of wired networks which do not support mobile users. In our study, using empirical data provided by a GSM operator, TURKCELL, we analyze the associated network model from the mobility perspective. We first show that the handover rate of a regular cell...
This paper presents a new GSM/UMTS jamming system which is intended to be placed in a restricted area for security purpose. A pseudo base station was constructed to attempt connecting with mobile terminals. While the terminals are trying to access, the system will get the unique identity, such as IMSI and IMEI, and further check these identities in the repository. The system will selectively block...
In GSM networks, the Frequency Assignment is a critical task for the mobile operators. In this paper we study different multiobjective metaheuristics to address the Frequency Assignment problem (FAP). In fact, solving optimization problems with multiple (often conflicting) objectives is, generally, a very difficult goal. This is the scenario in the FAP, where it is sought an assignment of frequencies...
Every system is automated in order to face new challenges in the present day situation. Automated systems have less manual operations, so that the flexibility, reliabilities are high and accurate. Hence every field prefers automated control systems. For utilization of appliances, the new concept has been thought to manage them remotely by using GSM, which enables the user to control switching ON/OFF...
Micro-climate monitoring usually requires deploying a large number of measurement tools. By adopting vehicular wireless sensor networks (VSNs), we can use fewer tools to achieve fine-grained monitoring. This work proposes a VSN architecture to realize micro-climate monitoring based on GSM short messages and availability of GPS receivers on vehicles. We demonstrate our prototype of a ZigBee-based car...
GPRS or the general packet radio service is a non-voice value added technology that allows data communication over mobile phones in an Internet Protocol (IP)-based network [11]. This paper focuses on the transmission of voice over the existing data channel in GSM/GPRS networks using a Web server. Since the data channel in any network is economically viable for transmission, a mechanism to transfer...
A research on the related technology and implementation of IP phone based on WiFi network is discussed in this paper; it includes the net structure of the technology used in designing the terminal of IP phone. This technology is a form of telecommunication that allows data and voice transmissions to be sent across a wide range of interconnected networks. A WiFi enabled IP phone is used which is preinstalled...
In this paper we have introduced a geographic rendezvous application through SMS Pushing (GRASP), a novel push based location based application. This enables a person to know whether any of his/her friends or colleagues, specified by the requesting user is present at a particular place also specified by the requesting user. The system also enables the service user to specify a future date and time...
A single-chip CMOS global system for mobile communications/digital cellular system dual-band offset phase-locked loop (OPLL) transmitter is presented in this paper. This chip includes a quadrature modulator and an OPLL modulation loop. Except for the loop filter and high-power voltage-controlled oscillator (TX VCO), everything is integrated into this chip to form a dual-band transmitter. This transmitter...
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