B.Sc Computer Science & BCA
semester-2
DATA COMMUNICATION
SYLLABUS & NOTES
B.Sc. Computer Science - SEMESTER II
CS2CRT03: Data Communication(Complementary)
Theory: 4 hrs. per week
Unit I: Data and Signals
Analog
Analog and Digital Data, Analog and Digital Siginals, Periodic and Nonperiodic, Periodic signals, Time and Frequency Domains, Composite Signals, Bandwidth, Digital Signals, Bit Rate, Digital Signal as a Composite Analog Signal, Transmission of Digital and Analog Signals, Transmission Impairment, Attenuation, Distortion, Noise, Data rate limits, Noiseless channel: Nyquist bit rate, Noisy Channel: Shannon Capacity. Simplified Communication & Data Communication models. Data Flow-Simplex, Half Duplex, Full Duplex.
Unit II: Transmission Media
Guided media, Twisted-pair cable - UTP, STP. Connectors Coaxial Cable, Connectors Fiber-Optic Cable Propagation Modes, Unguided Media Wireless Transmission - Terrestrial
Microwave, Satellite Microwave, Radio Waves. Infrared.
Unit III: Digital Transmission
Analog to Digital Conversion: Block Diagram of Digital Communication System. Parallel and serial ports Pulse Code Modulation(PCM), Sampling. Sampling Rate, Quantization, Delta modulation, Adaptive Delta Modulation, Transmission modes, Parallel Transmission, Serial Transmission, Asynchronous Transmission, Synchronous Transmission.
Unit IV: Analog Transmission
Digital to Analog Conversation, Modulation of Digital Data, Bit Rate, Baud Rate, Carrier signal, ASK, FSK, PSK, QAM. Analog to Analog modulation, Amplitude Modulation, Frequency Modulation, and Phase Modulation. Bandwidth Utilization: Multiplexing and Spectrum Spreading: Multiplexing, FDM, WDM, TDM, Synchronous TDM, Digital Siginal Services, Statistical TDM, Spread Spectrum, FHSS, DSSS.
Unit V: Switching
Circuit-Switched Networks. Three Phases, Packet Switching, Datagram Networks, Virtual-Circuit networks, Three Phases, Connection Oriented and Connectionless Services.
NOTES:
Lecture Notes:
Module 1:Data & Sjgnals
Module 2:Transmission Media
Module 3 :Digital Transmission
Module 4:Analog Transmission
Module 5:Switching
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