Telecom Fundamentals In this module, we’ll ensure you have a solid foundation in the fundamental ideas of elements of a circuit;Terminals, clients, servers and peers;How bits are represented on fiber with pulses; andHow 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 Frequency Division Multiplexing, Time Division Multiplexing, and Bandwidth on 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 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 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 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 USB, LAN, SATA ...... 2.5.2 Serial in Parallel for High Bit Rates 2.6 Frequency-Division Multiplexing ...... 2.6.1 Baseband vsFrequency-Shifted ...... 2.6.2 Coax, Radio and Fiber ...... 2.6.3 Parallel 2.7 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 PONs, GSM, CAN-BUS 2.8 Efficient Statistical Time Division Multiplexing ...... 2.8.1 Bandwidth on Demand ...... 2.8.2 Packet Switching 2.9 Reducing User Cost