8:15 AM
Unit 1: Fundamentals of digital communications (5)
1.1. Introduction
to digital communications: Definitions of terms, Signal propagation, Signal
types (Sine waves, Square waves), Signal parameters (Amplitude, Frequency,
Phase).
1.2. Channel
effects on transmission: Attenuation, Effects of limited bandwidth, Delay
distortion, Noise.
1.3. Data rate
limits in channels: Nyquist's theorem, Shannon's theorem.
1.4. Performance
of Channel: Bandwidth, Throughput, Latency, Jitter, Bit Error Rate (BER)
Practical Work
• Demonstrate
Sine and Square waves generation and analysis using MATLAB
Unit 2: Physical layer characterization (12)
2.1 Electromagnetic
Spectrum for Communication and Type of Propagation
2.2 Guided
Transmission Media: Twisted pair cables, Co-axial cables, Fibre optic cables
2.3. Unguided
Transmission Media: Wireless media (Terrestrial Microwaves, Satellite
Communication and Cellular System).
2.4. Physical
Layer Interfaces: RS 232 / EIA 232/ USB.
Practical Works:
• Physical
demonstration and explanation of different transmission media and physical
layer interfaces
Unit 3: Data transmission mechanisms (20)
3.1. Communication
modes: Simplex, Half-duplex, Full –duplex.
3.2. Transmission
modes: Serial transmission, Parallel transmission.
3.3. Synchronization:
Asynchronous transmission, Synchronous transmission.
3.4. Modulation
Techniques: Types of Analog Modulation (Amplitude Modulation, Frequency
Modulation and Phase Modulation), Digital Modulation [Amplitude Shift Keying
(ASK), Frequency Shift Keying (FSK), Phase Shift Keying (PSK), Quadrature
Amplitude Modulation (QAM)]
3.5. Introduction to packet switching: Circuit switching vs.
packet switching, Connection oriented services (Virtual circuits),
Connectionless services (Datagram), X.25, Frame Relay and ATM.
3.6. Multiplexing: Frequency division multiplexing (FDM),
Time division multiplexing (TDM), Wave division multiplexing (WDM).
3.7. Error control methods: Feedback error recovery (ARQ)
(Eg: Based on parity check), Forward error correction (FEC) (Eg: CRC)
Practical Works:
• Demonstrate
Analog Modulation Generation and Reconstruction using MATLAB
• Demonstrate
Digital Modulation (ASK, FSK, PSK) Generation and Reconstruction using MATLAB
Unit 4: Network architectures (8)
4.1. Introduction
to computer networks.
4.2. Network
topologies: Bus, Star, Ring.
4.3. Types of
networks: Local area networks, Wide Area Networks, Personal Area Networks.
4.4. Layered
network model: OSI model, TCP/ IP model.
Practical Works
• Network
wiring and LAN setup.
Unit 5: Internet
protocols (14)
5.1. Introduction:
History of the Internet protocols, Internet protocol stack, IP Addressing and
Routing (Version 4), Subnetting: Fixed and variable length, Uni-cast routing
algorithms.
5.2. Transport
Layer protocols: TCP and UDP.
5.3. IP Support
Protocols: ARP, DHCP and ICMP
5.4. Application
Layer Protocols: Domain Name System (DNS), Email – SMTP, POP, IMAP, FTP, HTTP,
RTP and VoIP.
5.5. IP version
6.
Practical Works:
• Setup of
Web Server, DNS Server, DHCP Server
Unit 6: Local area networks (14)
6.1. Introduction
to LANs.
6.2. Conventional
LAN Architectures: Access Protocols (CSMA/CD, Token Passing), Interconnecting
devices (Hubs, L2 /L3 Switch)
6.3. IEEE 802
MAC layer standards : 802.3, 802.11, 802.15 Switched Ethernet variants: Fast
Ethernet, Gigabit Ethernet, 10Gb Ethernet.
6.4. Wireless
LANs (802.11): Access methods (CSMA/CA), Frequency Bands (ISM), Operating Modes
(adhoc, Managed), Variants (802.11 a/ b/ g/ n), Wireless interconnection
devices (Hub, Router).
6.5 Bluetooth
(802.15) wireless personal area network.
Practical Works:
• Router
Basic Configuration
• Static
and Dynamic Routing
• Router
access-list configuration
Unit 7: Practical aspects of networking (7)
7.1. Structured
cabling and specifications: Standards CAT5, 5E, CAT6 etc..
7.2. Network
security: Firewalls and NAT, VLANs, VPNs, Proxy servers, Wireless security.
7.3. User
access technologies: Wired (xDSL, FTTH), Cellular
wireless (GPRS, EDGE, HSPDA), Broadband wireless (802.16)
Practical Works:
• Creating
VLAN