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Wired and wireless communication systems

Short answer

Wired systems use physical cables like twisted pair, coaxial, or fiber; examples include telephone lines, Ethernet, and cable TV. Wireless systems transmit via electromagnetic waves through free space using antennas; examples are radio, TV, mobile networks, Wi-Fi, and satellite.

Explain and enlist wired and wireless communication systems.

A communication system can be classified on the basis of its channel into wired and wireless systems.

Wired communication systems

The signal is carried through a physical conductor or cable that connects the transmitter and the receiver.

Examples:

  • Telephone line (twisted pair)
  • Coaxial cable (cable TV, early Ethernet)
  • Optical fiber (internet backbone, FTTH)
  • Ethernet LAN cable (UTP)
  • Power line communication

Features: more secure, less interference, high speed (fiber), but costly to install, no mobility, and limited to cable routes.

Wireless communication systems

The signal is sent as electromagnetic waves through free space using antennas, with no physical connection.

Examples:

  • Radio and FM/AM broadcasting
  • Television broadcasting
  • Mobile cellular networks (GSM, 4G, 5G)
  • Satellite communication
  • Wi-Fi, Bluetooth, infrared remote
  • Microwave links, radar, GPS

Features: mobility, easy to set up in difficult terrain, wide coverage; but more interference, less security, limited bandwidth, and affected by weather.

 Wired:     Tx ======cable====== Rx
 Wireless:  Tx ))) ~~ EMW ~~ ((( Rx

✓ Answer checked by Claude Opus 5.5 (high effort)

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