Optical PPM modulation is used normally in the FSO communication. However , recent experiments on Spectrally efficient modulations like M-QAM and M-PSK can be used. When combined with WDM , benefits of WDM could also be utilized.
TM Research and Development
Prestige Engineering Company
Robert John Taylor
Airbus Group Innovations UK
Université de Bretagne Occidentale
Dhirubhai Ambani Institute of Information and Communication Technology
National Institute for Research in Computer Science and Control
Dept of Electronics & Information Technology , Govt. of India
Dr RAKESH KUMAR JHA
Shri Mata Vaishno Devi University
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