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What is Cellular Networks

Chapter 660
Encyclopedia of Information Science and Technology, Second Edition
A network consisting of several cells served by fixed, pre-established infrastructure to cover a geographic area, for example, GSM, IS-95, UMTS.
Published in Chapter:
Wireless Ad Hoc Networking
Fazli Erbas (University of Hanover, Germany)
Copyright: © 2009 |Pages: 5
DOI: 10.4018/978-1-60566-026-4.ch660
Abstract
Mobile ad hoc networks represent a new form of communication consisting of mobile wireless terminals (e.g., handset, PDAs, notebooks). These type of networks are wireless multi-hop packet networks without any fixed infrastructure and centralized administration, in contrast to today’s wireless communications, which is based on a fixed, pre-established infrastructure. The design of wireless ad hoc networks faces many unique challenges. In this article, mobile ad hoc networks and their characteristics are described, and the design issues, applications and future trends of such networks will be discussed.
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Chapter 17
Third Generation (3G) Cellular Networks in Telemedicine: Technological Overview, Applications, and Limitations
A cellular network is a radio network made up of a number of radio cells (or just cells) each served by a fixed transmitter, known as a cell site or base station. These cells are used to cover different areas in order to provide radio coverage over a wider area than the area of one cell. Cellular networks are inherently asymmetric with a set of fixed main transceivers each serving a cell and a set of distributed (generally, but not always, mobile) transceivers which provide services to the network’s users. Cellular networks offer a number of advantages over alternative solutions like increased capacity, reduced power usage and better coverage.
Published in Chapter: Third Generation (3G) Cellular Networks in Telemedicine: Technological Overview, Applications, and Limitations; From: Handbook of Research on Distributed Medical Informatics and E-Health
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