Introduction and Outline of Data Communication and Networks
1. Communication Networks & Services
Approaches to Network design: Network Goals, Network Topologies, Switching Techniques: Message, Packet and Circuit switching, Evolution of Network Architecture and Services
2. Layered Architecture & Applications
Examples of Layering: OSI Reference Model, TCP/IP Model Application Layer Protocols and TCP/IP utilities : Telnet, FTP, HTTP and IP utilities like PING, TRACEROUTE, IPCONFIG, NETSTAT
1. Communication Networks & Services
Approaches to Network design: Network Goals, Network Topologies, Switching Techniques: Message, Packet and Circuit switching, Evolution of Network Architecture and Services
- Telegraph Networks and Message switching
- Telephone Networks and Circuit switching
- Internet, Computer Network and Packet switching
Essential elements of Network Architecture
Key factors in Communication Network Evolution
Key factors in Communication Network Evolution
2. Layered Architecture & Applications
Examples of Layering: OSI Reference Model, TCP/IP Model Application Layer Protocols and TCP/IP utilities : Telnet, FTP, HTTP and IP utilities like PING, TRACEROUTE, IPCONFIG, NETSTAT
3. Digital Transmission
Digital representation of information, Basic properties of digital transmission systems, Characterization of communication channels: Frequency domain and Time domain, Fundamental limits in digital transmission: Nyquist signaling rate, Shannon channel capacity, Line coding. Modems and Digital modulation: Amplitude shift keying, Frequency shift keying, Phase shift keying. Transmission media: Twisted Pair, Coaxial cable, Optical Fibre, Radio transmission, Infra red Light. Error detection and correction: Error detection, two dimensional parity checks, internet checksum, polynomial codes and their error detection capability Multiplexing: Frequency Division Multiplexing, Time Division Multiplexing, Wavelength Division Multiplexing, SONET Multiplexing Circuit Switches: Space division switches, time division switches
Digital representation of information, Basic properties of digital transmission systems, Characterization of communication channels: Frequency domain and Time domain, Fundamental limits in digital transmission: Nyquist signaling rate, Shannon channel capacity, Line coding. Modems and Digital modulation: Amplitude shift keying, Frequency shift keying, Phase shift keying. Transmission media: Twisted Pair, Coaxial cable, Optical Fibre, Radio transmission, Infra red Light. Error detection and correction: Error detection, two dimensional parity checks, internet checksum, polynomial codes and their error detection capability Multiplexing: Frequency Division Multiplexing, Time Division Multiplexing, Wavelength Division Multiplexing, SONET Multiplexing Circuit Switches: Space division switches, time division switches
4. Peer-To-Peer Protocols
Connection oriented and connectionless service models, Features of Services offered by a given layer, Peer to peer protocols in end to end and single hop network ARQ protocols: Stop and wait, go back N, Selective Repeat Other peer to peer protocols: Sliding window flow control, Timing recovery for synchronous services, TCP Reliable stream service and flow control Data Link Control – Framing, Point to Point Protocol (PPP), High level Data Link Control (HDLC).
Connection oriented and connectionless service models, Features of Services offered by a given layer, Peer to peer protocols in end to end and single hop network ARQ protocols: Stop and wait, go back N, Selective Repeat Other peer to peer protocols: Sliding window flow control, Timing recovery for synchronous services, TCP Reliable stream service and flow control Data Link Control – Framing, Point to Point Protocol (PPP), High level Data Link Control (HDLC).
5. Medium Access Control Protocols
Multiple access communications, Random access MAC protocols: ALOHA, Slotted ALOHA, CSMA, CSMA/CD Scheduling approaches to medium access control: Reservation systems, polling, Token passing rings, Comparison of Scheduling approaches in medium access control, Comparison of random access and scheduling medium access controls Channelization: FDMA, TDMA, CDMA
Multiple access communications, Random access MAC protocols: ALOHA, Slotted ALOHA, CSMA, CSMA/CD Scheduling approaches to medium access control: Reservation systems, polling, Token passing rings, Comparison of Scheduling approaches in medium access control, Comparison of random access and scheduling medium access controls Channelization: FDMA, TDMA, CDMA
6. Local Area Networks
LAN structure, MAC sublayer, Logical Link Control layer (LLC), LAN Standards: Ethernet and IEEE 802.3 LAN standard, Token Ring and IEEE 802.5 LAN standard, FDDI, Wireless LANs and IEEE 802.11 standard, LAN bridges: Transparent bridges, Source Routing bridges, Mixed-media bridges.
LAN structure, MAC sublayer, Logical Link Control layer (LLC), LAN Standards: Ethernet and IEEE 802.3 LAN standard, Token Ring and IEEE 802.5 LAN standard, FDDI, Wireless LANs and IEEE 802.11 standard, LAN bridges: Transparent bridges, Source Routing bridges, Mixed-media bridges.
Network services and Internal Network operation, Packet network topology, Datagrams and Virtual circuits, Connectionless packet switching: Virtual circuit packet switching, Structure of a packet switch Routing in packet networks : Routing algorithm classification, Routing tables, Flooding, Hierarchical Routing, Shortest path routing algorithms (Bellman Ford Algorithm, Dijkstra’s Algorithm), Link State routing, Distance Vector Routing Congestion control algorithms: Open Loop control and Closed Loop control
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