I am working on the performance of the modulation schemes at optical and RF frequencies ranging from 850Mhz to 3Ghz so if any body can provide me with an reference to an modulation scheme of dqpsk and mary psk and delays of any order in channels if any body can provide me any reference to a channel model or algorithm relating to it it would be of a great help.
Dear Indranil,
Your question is covering too large terrain. What RF frequency range are you interested in? And what bandwidth modulation do you need? It is not possible to answer your question unless you are more specific on what you try to achieve. There are many channel models and many many modulation schemes. And there are similarities and difference when talking about RF transmission or optical transmission.
Kindest regards, Ben
thank you ben
but for the optical frequency range i need the answer and i am struct with many solutions it would be helpful if any one of those is preffered most
I agree with the comments from Ben. Nevertheless, if you have lack of insight to the situation, use the Rayleigh model.
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