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Presentations : Data Communications

Introduction to Data Communications
Communications Model, Data Communication Networks, Public Switched Telephone Network (PSTN) , Leased Line, Local Area Networks (LAN), Public Switched Data Network (PSDN), Integrated Services Digital Network (ISDN), Communication Architectures, Protocol Layer Concepts, OSI Layer, Standard Organizations.
Last update: 19 May 2002
Transmission Structures, Digital and Analog Signal, Time and Frequency Domain concepts, Fourier Series, Broadband and Baseband.
Last update: 19 May 2002
Transmission Impairments
Attenuation, Distortion, Noise, Crosstalk, Nyquist Theorem, Shannel-Hartley law, Bit rate and Baud rate, Bandwidth efficiency.
Last update: 19 May 2002
Transmission Media

Twisted pair, STP, UTP, Coaxial cable, Fiber Optics, Wireless, Microwave, Satellite, Radio, Media Properties.
Last update: 19 May 2002
Fiber Optics Fundamentals
Snell's Law, Transmission Mode, Multimode Fiber, Single Mode Fiber, Typical Fiber Cable, Cable Structure. 
Last update: 19 May 2002
Data Encoding
Encoding Scheme, Encoding and Modulation, AMI, B8ZS, HDB3, Amplitude Shift Keying (ASK), Frequency Shift Keying (FSK), Phase Shift Keying (PSK), Pulse Code Modulation (PCM), Delta Modulation. Amplitude Modulation (AM), Frequency Modulation (FM), Phase Modulation (PM).
Last update: 19 May 2002
Data Transmission
Simplex, Half-Duplex, Full-Duplex, Serial and Parallel Transmisison, Synchronous and Asynchronous Transmission, Bit Oriented Synchronous Transmission, Byte Oriented Synchronous.
Last update: 19 May 2002
Modem functions, Modulation Methods, FSK, PSK, DPSK, QAM, TCM, Standard V Series, Error Correcting Techniques.
Last update: 19 May 2002
Multiplexing Techniques
Multiplexer, Frequency Division Multiplex (FDM), Time Division Multiplex (TDM), Statistical TDM.
Digital Carrier Systems
T-carrier, Superframe, Extended Superframe, (ESF), E-carrier, PDH, Synchonouse Digital Hierarchy, Synchronous Optical Network, SONET/SDH, Digital Multiplexing Hierarchy.
Last update: 19 May 2002
Data Link Control
Flow Control, Sliding-Window, Error Detection, Parity Check, Cyclic Redundant Check (CRC), Error Control Techniques, Stop-and-Wait ARQ, Go-back-N ARQ, Selective-repeat ARQ.
Last update: 19 May 2002
Switching Network
Switching technology, Circuit switching, Packet switching, Routing, Virtual circuits, Datagrams.
Last update: 19 May 2002
Local Area Networks
LAN characteristics, Topology, Bus, Ring, Star, LAN Media, Data Link Layers, MAC Address, Logical Link Control, LAN Standard, IEEE 802.2, IEEE 802.3, IEEE 802.4, IEEE 802.5, IEEE 802.6 and FDDI. 
Last update: 19 May 2002
Ethernet architecture, IEEE 802.3 specification, Hub, 10Base5, 10Base5, 10BaseT, 10BaseF, CSMA/CD, Collision, Ethernet Frame, Binary Backoff, Interframe Gap, Ethernet Performance, Ethernet Switching. 
Last update: 19 May 2002


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Last Updated : October, 2003