Principles of communication systems

1. Principles of communication systems NET 352 Networks and Communication Department

2. Instructor Information: • Name : May Al Khamis. • Office Hours : • Monday : from 8:00 to 2:00 • Tuesday : from 10:00 to 11:00 • Thursday: from 10:00 to 11:00 • E-mail :mabalkhamis@pnu.edu.sa • Office : 1.505.23 Networks and Communication Department

3. Course Syllabus • Topics to be covered : • Introduction to Data Communication. • Types of Signals and its Properties. • Types of Communications. • Transmission Impairments. • Transmission Media. • Modulation and Encoding Techniques. • Data Multiplexing • Transmission Types. • Error Control. • Network Models Networks and Communication Department

4. Course References: • “Data and Computer Communications” , by William Stalling . (latest edition) • “Data Communications and Networking” , by Forouzan. (latest edition) Networks and Communication Department

5. Grading : Networks and Communication Department

6. Course Plan: Networks and Communication Department

7. introduction Networks and Communication Department

8. Changes in Networking Technology: • Emergence of high-speed LANs • Corporate WAN needs • Digital Electronics Networks and Communication Department

9. Communication Model: Networks and Communication Department

10. Data Communications Model : Networks and Communication Department

11. Communications Tasks : Networks and Communication Department

12. Transmission Line : • The basic building block of any communications facility is the transmission line. Networks and Communication Department

13. Transmission Mediums : • Two mediums currently driving the evolution of data communications transmission are: Networks and Communication Department

14. Networking : • Advances in technology have led to greatly increased capacity and the concept of integration, allowing equipment and networks to work simultaneously. Networks and Communication Department

15. LANs and WANs : • There are tow board categories of networks: • Local Area Network ( LAN ) . • Wide Area Network ( WAN ) . Networks and Communication Department

16. Wide Area Network (WAN): • Span a large geographical area • Require the crossing of public right-of-ways • Rely in part on common carrier circuits • Typically consist of a number of interconnected switching nodes Networks and Communication Department

17. Wide Area Network (WAN): • Alternative technologies used include: • Circuit switching • Packet switching • Frame relay • Asynchronous Transfer Mode (ATM) Networks and Communication Department

18. Local Area Network (LAN): • Smaller scope, typically a single building . • Usually owned by the same organization that owns attached devices . • Internal data rates greater than WANs . • Most common configurations are switched LANs and wireless LANs . Networks and Communication Department

19. The Internet: • Internet evolved from ARPANET • Developed to solve the dilemma of communicating across arbitrary, multiple, packet-switched network • TCP/IP provides the foundation Networks and Communication Department

20. Internet Key Elements: Networks and Communication Department

21. Metrics Units • The main prefixes we use: • Use powers of 10 for rates, powers of 2 for storage • E.g., 1 Mbps = 1,000,000 bps, 1 KB = 1024 bytes • “B” is for bytes, “b” is for bits Networks and Communication Department