Module 1 : Introduction
Lecture 1 : Introduction
Comparison of Satellite and Optical communication


Satellite vs Fiber Optics
   
 

Satellite

Fiber Optics

       Point to Multi-point

      BW ~ GHz

      Maintenance free

      Short life ~7-8 Yr

      No upgradeability

      Mobile, air, sea

      Point to point

     BW ~ THz

     Needs Maintenance

     Long life

     Upgradeable

     On ground only

   
The two modes of transmission have their own merits and limitations. The two can infact play a complementary role. We therefore conclude that


Satellite and Optical communication will co-exist due their complementary nature
 

Advantages of Optical Communication

Ultra high bandwidth (THz)

Low loss (0.2 dB/Km)

Low EMI

Security of transmission

Low manufacturing cost

Low weight, low volume

Point to Point Communication

   
1