نتایج جستجو برای: mobile radio system

تعداد نتایج: 2419503  

2015
Md. Biplob Hossain Saifur Rahman

This paper proposes, designs and constructs an image recognition & voice technology based security system by highlighting the advantages of image processing technology and voice synthesis technology which are presence in the electronic market. This paper mainly approaches towards enhanced security by checking the tag image of the operator as well as recognizing voice which are validated previou...

2002
Syed Z. Ali

− Location Management is the procedure of keeping track of and locating Mobile Terminals (MT’s) in mobile radio communication system so that calls arriving for them can be routed correctly to their current location. The main aim of the Location Management is to track the MT’s using minimum overhead traffic. Since the radio bandwidth is a scarce resource in mobile radio communication systems, it...

2012
Yannis Le Guennec M. Thomas Pfeiffer

Hybrid Analog and Digital Access Networks Architectures for Fixed/Mobile Infrastructure Convergence In order to realize the convergence of the optical infrastructure of fixed and mobile access networks, the objective of this thesis is to study the solutions for distributing native radio carriers through typical optical access networks. The first Part describes the contexts and the main physical...

Journal: :EJIS 2008
Jan Kietzmann

Despite the increasing popularity of mobile information systems, the actual processes leading to the innovation of mobile technologies remain largely unexplored. This study uses Action Research to examine the innovation of a mobile RFID technology. Working from Activity Theory, it departs from the prevalent product-oriented view of innovation and treats technology-in-the-making as a complex act...

Journal: :MONET 1997
Giuseppe Anastasi Davide Grillo Luciano Lenzini Enzo Mingozzi

The performance of third generation mobile systems is greatly influenced by the multiple access protocols used in the radio access system. The paper introduces a multiple access protocol, SIR (Service Integration for Radio Access), which has the potential for accommodating the requirements of speech and bursty data traffic in an efficient way. SIR is evolved from an access protocol (PRMA++) stu...

2015
Jyoti Sekhar Banerjee

Software Defined Radio (SDR) and Cognitive Radio (CR) are the key enabling technologies to overcome the spectrum scarcity problem a bit, by supporting dynamic spectrum access in which either a network or a wireless node reconfigures its transmission or reception parameters to communicate efficiently, avoiding interference with licensed or unlicensed users. CR senses the environment and enables ...

2003
Antonella Di Fazio Antonio Vernucci Eugenio Rossini

3G Third Generation 3GPP Third Generation Partnership Project A.R.N.I. Azienda Regionale per la Navigazione Interna ACK Acknowledge ADC Analog to Digital Converter ADNR European Committee for Standardization AFC Automatic Frequency Control AGC Automatic Gain Control API Application Programming Interface ASMS-TF Advanced Satellite Mobile Systems Task Force B/M Broad/Multi BER Bit Error Rate BLER...

1999
J. T. Zubrzycki

Electronic news gathering and live outside broadcasts need a quick and easy method of getting the programme material back to base. The success of mobile telephones has encouraged the telecommunications industry to develop more advanced systems offering higher capacities. Mobile Broadband System (MBS) is a wireless cellular radio network supporting services up to 34 Mbits/s. The network is being...

1998
Alvin S. Lim Kui W. Mok

Mobile inventory control system involves large number of highly mobile and dispersed databases in the form of RFID (radio frequency ID) tag devices. Radio tags have limited communication range, bandwidth, computing power and storage. We examine some critical impact of these characteristics on design of facilities and techniques required for supporting integrated mobile distributed databases and...

Journal: :journal of advances in computer research 0

grid computing is a term referring to the combination of computer resources from multiple administrative domains to reach a common computational platform. mobile computing is a generic word that introduces using of movable, handheld devices with wireless communication, for processing data. mobile computing focused on providing access to data, information, services and communications anywhere an...

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