Issue I

I 04 cover

Wireless Networks - Telecommunications' New Age

Volume: 2004, No.I

Date: February 2004

Guest Editors: Mehmet Ufuk Çaglayan, Vicente Casares-Giner and Jordi Domingo-Pascual

Contents: Download full issue (PDF 1.4MB)

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Wireless Networks - Telecommunications' New Age

In Europe, the lack of interoperability between technologically different systems hindered cross-border roaming between operators. In 1982, under the auspices of the CEPT (Conférence Européenne des Postes et Télécommunications), the GSM (Groupe Spécial Mobile) embarked on work aimed at establishing a digital cellular mobile telephony system, which was to lead to the second generation GSM system. GSM is a pan-European system which provides greater capacity than its predecessors, allows roaming within Europe and can evolve to incorporate new technologies, services and applications. Its development was structured in chronological phases: the Phase 1 specification of the GSM system was completed in 1991 with voice services and the first networks were deployed immediately. Phase 2 incorporated new services (Short Message Service --SMS--, new carrier services, etc.) and was completed in 1997. Phase 2+ incorporates GPRS services (General Packet Radio Service, using packet switched technology to transfer data in bursts, such as e-mail and WWW) and HSCSD (High Speed Circuit Switched Data, using circuit switched technology to transfer files and for mobile video applications). Although it was conceived in Europe, GSM has been adopted by other operators outside the old continent. GSM’s success has been such that, at the beginning of the 21st century, mobile GSM terminals account for close to 70% of all the world’s mobile terminals.

The growing demand in the saturated mobile frequency spectrum prompted the FCC to look for a way to make the frequency spectrum more efficient. As early as 1971, AT&T came up with an idea for a possible technical solution to this problem, and the principle of cellular radio began to take shape. Various countries began to introduce cellular radio services in the early 80s, first with AMPS, NMT, ETACS (Extended Total Access Communications System), etc., a decade later with GSM, D-AMPS (Digital Advanced Mobile Phone Service), PCD (Personal Digital Cellular), etc. and then early this century with UMTS (Universal Mobile Telecommunications System) and CDMA-2000 (Code Division Multiple Access 2000), not to mention GPRS WAP (Wireless Application Protocol), I-mode, etc. And not to forget 3G (Third Generation) services such as SMS (Short Message Service), which has been such a huge success, now accounting for a major percentage of operators’ revenues, and paving the way for MMS (Multimedia Messaging Service).

Papers

The following papers are included in this issue:

  • VoIP Services for Mobile Networks by Ai-Chun Pang and Yi-Bing Lin
  • WLAN Tracker: Location Tracking and Location Based Services in Wireless LANs by Can Komar and Cem Ersoy
  • Dissemination of Popular Data in Distributed Hot Spots by Mehmet Yunus Donmez, Sinan Isik and Cem Ersoy
  • What is the Optimum Length of a Wireless Link? by M. Ufuk Çaglayan, Fikret Sivrikaya and Bülent Yener
  • Capacity in WCDMA Cellular Systems: Analysis Methods by Luis Mendo-Tomás
  • A Perspective on Radio Resource Management in Cellular Networks by Oriol Sallent-Roig, Jordi Pérez-Romero and Ramón Agustí-Comes
  • Location Management Strategies in Next Generation Personal Communications Services Networks by Pablo García-Escalle and Vicente Casares-Giner
  • IP Mobility: Macromobility, Micromobility, Quality of Service and Security by Josep Mangues-Bafalluy, Albert Cabellos-Aparicio, René Serral-Gracià, Jordi Domingo-Pascual, Antonio Gómez-Skarmeta, Tomás P. de Miguel, Marcelo Bagnulo and Alberto García-Martínez
  • On the Use of Mobile Ad Hoc Networks for the Support of Ubiquitous Computing by Juan-Carlos Cano-Escrivá, Carlos-Miguel Tavares-Calafate, Manuel-José Pérez-Malumbres and Pietro Manzoni
  • WPANs Heading towards 4G by Ramón Agüero-Calvo, Johnny Choque-Ollachica, José-Ángel Irastorza-Teja, Luis Muñoz-Gutiérrez and Luis Sánchez-González


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