02-11-2012, 10:54 AM
Wireless Telecommunications Systems & Networks
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Introduction
Objectives
Discuss the general history and evolution of wireless technology from a North American viewpoint and explain the cellular radio concept
Discuss the evolution of modern telecommunications infrastructure.
Discuss the structure and operation of the Public Switched Telephone Network, the Public Data Network, and the SS7 Network.
Explain the basic structure of Broadband Cable TV systems
Explain the basic concept and structure of the Internet.
Discuss the usage of the various telecommunications networks and their relationship to one another.
Discuss the OSI model and how it relates to network communications.
The History and Evolution of Wireless Radio Systems
Early AM wireless systems
Maxwell, Hertz, Fessenden, and Marconi
Crude early low-frequency transmitters
Used on-off keying (i.e. Morse code)
See Figure 1-1
Modern AM
The development of FM
The evolution of digital radio
The cellular telephone concept
Overview of Existing Network Infrastructure
Evolution of different technologies
Analog versus digital
Metropolitan area networks
VoIP and wireless technologies
See Figure 1-8
Review of the Seven-Layer OSI Model
The OSI model
The seven layers
Application layers and transport layers
See Figure 1-9 and Figure 1-10
Wireless Network Applications: Wireless Markets
Voice network evolution
Data network evolution