Telecom Fundamentals
About this ebook
In this module, we’ll ensure you have a solid foundation in the fundamental ideas of telecom:
• The elements of a circuit;
• Terminals, clients, servers and peers;
• How bits are represented on fiber with pulses; and
• How bits are represented with modems on wireless, cable TV and DSL
Then we’ll understand how a circuit's capacity is shared to carry many users’ traffic on common facilities: Frequency Division Multiplexing, Time Division Multiplexing, and Bandwidth on Demand: efficient sharing, involving packets, routers and overbooking the network core.
Telecom Module 2
Detailed Outline
2 Telecom Fundamentals
2.1 Communication Circuit Model
...... 2.1.1 Information Theory
...... 2.1.2 ITU Model: DTEs and DCEs
2.2 Terminals, Clients, Servers and Peers
...... 2.2.1 Dumb Terminal and Remote Host
...... 2.2.2 Client-Server
...... 2.2.3 Peer-to-Peer
2.3 Representing Bits on Digital Circuits: Pulses
...... 2.3.1 Two-State Transmission Systems
...... 2.3.2 Range Limiting Factors
...... 2.3.3 Repeaters
...... 2.3.4 Comfort Noise Generation
2.4 Representing Bits in Frequency Channels: Modems
...... 2.4.1 Passband Channels
...... 2.4.2 Carrier Frequencies
...... 2.4.3 Modulation
...... 2.4.4 “Press 1 to Understand How Modems Work”
...... 2.4.5 Radio-Frequency Modems
...... 2.4.6 CDMA and OFDM
...... 2.4.7 ASK, FSK, PSK, QAM and QPSK
2.5 Serial and Parallel
...... 2.5.1 Serial Ports: USB, LAN, SATA
...... 2.5.2 Serial in Parallel for High Bit Rates
2.6 Sharing: Frequency-Division Multiplexing
...... 2.6.1 Baseband vsFrequency-Shifted
...... 2.6.2 Coax, Radio and Fiber
...... 2.6.3 Parallel
2.7 Sharing: Time-Division Multiplexing
...... 2.7.1 Synchronous TDM Channels
...... 2.7.2 Trunk Carrier Systems
...... 2.7.3 T1, SONET and SDH
...... 2.7.4 Other TDM Implementations: PONs, GSM, CAN-BUS
2.8 Efficient Sharing: Statistical Time Division Multiplexing
...... 2.8.1 Bandwidth on Demand
...... 2.8.2 Packet Switching
2.9 Overbooking: Reducing User Cost
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About the author
Eric Coll is an international expert in telecommunications, broadband and networking, and has been actively involved in the telecom industry since 1983. He holds Bachelor of Engineering and Master of Engineering (Electrical) degrees.
Mr. Coll has broad experience, and broad knowledge of telecom developed working as an engineer in the telecommunications industry.
He has used his knowledge of telecom to develop and teach telecommunications technology training seminars to wide acclaim across North America since 1992... and answering questions at seminars for companies and organizations ranging from Bell Labs to the Department of Justice keeps things up to date.
In his spare time, Mr. Coll authors textbooks and online courses based on the latest updates to the seminar courses.
Mr. Coll also provides consulting services as a Subject Matter Expert in telecommunications to government, carriers, and their customers.
