ELECTRONICS AND COMMUNICATION ENGINEERING

DATA COMMUNICATION NETWORKS 

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UNIT I                  INTRODUCTION TO NETWORKS                                                                           

Data Communication: Components -  Protocols and Standards - Standard making organizations - data rate and Channel capacity, Line configuration, Topology of networks, Transmission modes, Digital Data Transmission, Categories of Networks, Inter-Networks, OSI model, TCP/IP Model, Networking and internetworking devices, Switching: Circuit switching - Packet switching - Message switching.

UNIT II                 APPLICATION LAYER 


Web and HTTP: Overview of HTTP - Non Persistent and Persistent - HTTP Message format –Cookies - Web catching - Conditional GET, FTP, Electronic Mail in Internet: SMTP - Comparison with HTTP - Mail Message format - Mail Access Protocol – DNS - Peer to Peer Applications, Concept of Socket in TCP & UDP, Telnet.

UNIT III                TRANSPORT LAYER                                                                                                       Introduction and Transport Layer Services, Multiplexing and De-multiplexing, Connectionless Transport: UDP, Principles of Reliable Data Transfer, Connection Oriented TCP, Principles of Congestion Control: ATM ABR Congestion Control - TCP Congestion Control.


UNIT IV                NETWORK LAYER                                                                  

Inside a Router, Internet Protocol, IPV4 - IPV6 - ICMP, Routing protocols: Distance Vector Routing (RIP) and Link State (OSPF) Routing – BGP - Broadcast and Multicast Routing.


UNIT V      DATA LINK LAYER AND WIRELESS NETWORKS                      Introduction to Data link layer, Error detection: VRC -  LRC – CRC - Checksum and Error correction: Hamming Code, Reliable transmission: Flow Control and Error Control - Token bus - Token ring - Medium Access control: TDMA, FDMA – CDMA – Aloha - CSMA/CA - CSMA/CD Wireless Networks: Introduction to Wi-fi – Wimax – MANET – VANET - WSN.