Week 3 Project

/

Telecommunications and Wireless Networks

Telecommunications

A corporate telecommunications system consists of:

Telephone system

Mobile Cellular communications

Video conferencing

Corporate Web site

LAN

WAN

Internet access

Enterprise networking

Telecommunications systems are developed under three standards:

Transmission Control Protocol/Internet Protocol (TCP/IP): Enables communication among diverse components on a telecommunications network. TCP/IP consists of a suite of protocols that has become the dominant model for achieving connectivity within the Internet and between computers and networks. Protocols provide a common set of rules that enables this communication.

Packet Switching: Makes ef�cient use of the network communications capability by splitting messages into small packets that travel independently along different paths on a network and then reassemble at the destination.

Client/Server Networks: Connect personal computers on a network to multiple servers. Client/server networks distribute most of the enterprise’s computing power to the factory �oor and the desktop of every user.

Transmission Media

Principal transmission media for data transmission are:

Twisted copper telephone wire: This is the least expensive medium and can transmit low volumes of data.

Coaxial copper cable: This is expensive to install but can transmit high volumes of data.

Fiber-optic cable: This is also expensive to install but can transmit high volumes of data.

Wireless transmission: This is of three types:

Microwave: cost effective for large volume transmission over long distances

Satellite: cost effective for large volume transmission over long distances

Low-frequency radio: cost effective for infrared waves

Let us now explore the various network designs used in organizations to transmit data.