|Course Code: BCA314||
Course Title: Data Communication (4 Credits)
Unit-1: Data Communications, Data Networking, and the Internet: What is communication, uses of communication; General block diagram of communication system, types of communication, Data communications, Applications of data communications Data Communications and Networking for Today's Enterprise, A Communications Model, Networks, Internet
Unit-2: Data Transmission: Fourier analysis, Band limited signals, The communication channel, Maximum data rate of a channel, Electromagnetic spectrum, electromagnetic waves, frequency and wave length, bandwidth, bandwidth and channel capacity, Modulation, types of Modulation, Concepts and Terminology, Analog and Digital Data Transmission, Transmission Impairments, Channel Capacity
Unit-3: Transmission Media: Guided Transmission Media, Wireless Transmission, Wireless Propagation, Line-of-Sight Transmission, Optical Fibre -Physics & velocity of propagation of light, Advantages & disadvantages, unguided media: Electromagnetic polarization, attenuation and absorption, optical properties of radio waves, terrestrial propagation of electromagnetic waves, skip distance free-space path loss, microwave, infrared & satellite communication system.
Unit-4: Signal Encoding Techniques: Digital Data, Digital Signals; Digital Data, Analog Signals; Analog Data, Digital Signals; Analog Data, Analog Signals
Unit-5: Digital Data Communication Techniques: Digital communication, advantages of digital communication, Nyquist theorem ,Sampling Theory, Analog to digital conversion -Pulse Code Modulation (PCM), Delta modulation (DM); encoding of digital signals, Multiplexing and Modulation of Digital Signals, digital radio, digital amplitude modulation, frequency shift keying (FSK), phase shift keying (PSK), quadrature amplitude modulation (QAM), band width efficiency, carrier recovery, differential phase shift keying,(DPSK), clock recovery, probability of error & bit error rate, trellis encoding, Asynchronous and Synchronous Transmission.
Unit-6: Data Link Control Protocols: Types of Errors, Error Detection, Error Correction, Line Configurations, Flow Control, Error Control, High-Level Data Link Control (HDLC)
Unit-7: Multiplexing: Frequency-Division Multiplexing, Synchronous Time-Division Multiplexing, Statistical Time-Division Multiplexing, Asymmetric Digital Subscriber Line, xDSL
Unit-8: Spread Spectrum: The Concept of Spread Spectrum, Frequency Hopping Spread Spectrum, Direct Sequence Spread Spectrum, Multiple Access- Random Access, Aloha- Carrier Sense Multiple Access (CSMA)- Carrier Sense Multiple Access with Collision Detection (CSMA)- Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA), - Frequency- Division Multiple Access (FDMA), Time - Division Multiple Access (TDMA), - Code - Division Multiple Access (CDMA).
Unit-9: Circuit Switching and Packet Switching: Switched Communications Networks, Circuit Switching Networks, Circuit Switching Concepts, Soft switch Architecture, Packet-Switching Principles, Modems
Unit-10: Routing in Switched Networks: Routing in Packet-Switching Networks, Examples: Routing in ARPANET, Least-Cost Algorithms
Unit-11: Congestion Control in Data Networks: Effects of Congestion, Congestion Control, Traffic Management, Congestion Control in Packet-Switching Networks
Unit-12: Local Area Network Overview and ISDN: Background, Topologies and Transmission Media, LAN Protocol Architecture, Bridges, Hubs and Switches, Virtual LANs, integrated services digital network (ISDN)
Unit-13: Ethernet: Traditional Ethernet, High-Speed Ethernet, IEEE 802.1Q VLAN Standard
Unit-14: Wireless LANs: Overview, Wireless LAN Technology, IEEE 802.11 Architecture and Services, IEEE 802.11 Medium Access Control, IEEE 802.11Physical Layer, IEEE 802.11 Security Considerations
1. Data Comminication and Computer Networks : Brijendra singh (PHI)