Network_Transmission_Media_Enhanced.pptx

PowerPoint presentation on network transmission media

1. Network transmission media

2. Introduction Data transmission media are the paths that carry data from one device to another. They are divided into two types: Wired Transmission Media Wireless Transmission Media

3. Overview of Wired Transmission Media Wired media use physical cables to transmit data. Examples include: Twisted Pair Cable Coaxial Cable Fiber Optic Cable

4. Twisted Pair Cable Internal Components: • Pairs of copper wires twisted together • Insulation Merits: • Low cost • Easy to install Demerits: • Limited bandwidth • Susceptible to interference

5. Coaxial Cable Internal Components: • Copper conductor • Insulating layer • Metallic shield • Outer insulation Merits: • Better shielding than twisted pair • Higher bandwidth Demerits: • Bulkier • More expensive than twisted pair

6. Fiber Optic Cable Internal Components: • Core (glass/plastic fibers) • Cladding • Protective coating Merits: • Extremely high bandwidth • Immune to electromagnetic interference Demerits: • Expensive • Fragile and harder to install

7. Overview of Wireless Transmission Media Wireless media transmit data without physical cables. Examples include: • Wi-Fi • Bluetooth • Cellular Networks • ZigBee • Near Field Communication (NFC) • RFID • Satellite Communication • Infrared (IR) • Ultra-Wideband (UWB)

8. Wi-Fi High-speed wireless networking for LANs.

9. Bluetooth Short-range communication between devices.

10. Cellular Networks Mobile communication using cell towers.

11. ZigBee Low-power wireless mesh for IoT devices.

12. Near Field Communication (NFC) Very short-range communication (payment systems).

13. RFID Radio tags for tracking and identification.

14. Satellite Communication Long-distance communication via satellites.

15. Infrared (IR) Short-range line-of-sight communication.

16. Ultra-Wideband (UWB) High data-rate, short-range communication.

17. Comparison: Wired vs Wireless Wired: • Stable and high speed • Secure • Requires physical installation Wireless: • Convenient and flexible • Easier to expand • May suffer interference and lower speed

18. Thank You Questions?