Mediums of wireless communication

1. Wireless
transmission

2. TYPES OF WIRELESS
TRANSMISSION
Radio Transmission
Microwave
Transmission
Infrared Transmission
Lightwave
Transmission
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3. RADIO
TRANSMISSION
 Radio waves can have
wavelength from 1 mm –
100,000 km
 Frequencies range from 3 Hz
(Extremely Low Frequency) to
300 GHz (Extremely High
Frequency)
 Areas of applications of radio
transmission are:
• broadcasting and multicasting
• fixed and mobile radio
communications
• AM and FM radio

4. MICROWAVE
TRANSMISSION
 Radio waves can have
wavelength from 1 mm – 1m
 Frequencies range from 300
MHz (1 m) and 300 GHz (1 mm)
 Areas of applications of
microwave transmission are:
• satellite communications
• deep space radio communications
• radars, radio navigation systems

5. INFRARED
TRANSMISSION
 Waves longer than those of
visible light, but shorter than
those of radio waves.
 Radio waves can have
wavelength from 750nm –
300nm
 Frequencies range from 300
MHz (1 m) and 300 GHz (1
mm)
 Areas of applications of
infrared transmission are:
• Home-entertainment
remote-control boxes
• Intrusion detectors
• Missile guidance systems

6. LIGHT WAVE TRANSMISSION
 Uses light-emitting diodes (LEDs) for data
transmission
 Light waves can have wavelength from 380 nm to
780 nm
 Does not permeate walls, glass or buildings and
more secure.
 Areas of applications of light wave transmission
are:
• airlines
• undersea explorations
• Operation theatres in the hospitals

7. Wireless Transmission Explained
References
Haas, H. (2018). LiFi is a paradigm-shifting 5G technology. Reviews in Physics, 3, 26-31.
doi:https://doi.org/10.1016/j.revip.2017.10.001
Proakis, J. G., & Salehi, M. (2002). Communication systems engineering (2nd ed.). Upper Saddle
River, N.J.: Prentice Hall.
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