I am currently looking at various papers written (some listed at the bottom) that discuss how laser pulses can be modulated to send encoded messages to a receiver for communication systems. The more I read , the more I find out there are many ways to do this. From what I have seen there are 4 major categories of modulation schemes:
1) Pulse Position Modulation (PPM)
2) Pulse Amplitude Modulation (PAM)
3) Frequency Modulation (FM)
4) Phase Shift Modulation (PSM)
As I read through more and more papers, I am seeing that people have improved on various parameters in 1-4 above (average power, period of pulses, bit error rate, packet error rate, and signal-to-noise ratio SNR to name a few). As a result, each of the 4 categories above has maybe 100s modulation schemes that improve on various parameters.
I am wondering if there is a tree diagram of sorts that guides which modulation scheme to use depending on your needs. For example, suppose I need a low bit error rate but messages need to be sent as quickly as possible and power is not a concern, how do I know which modulation scheme is best?
Or, another example, suppose power IS a concern, but speed of messages being sent to the receiver is not. How do I know which modulation scheme is best?
The closest diagram I found for what I am looking for can be found here:
But this diagram is missing guidance about which schemes to use for your specific needs.
Is there a diagram out there is fills in details about this?
Following are just some of the papers I have looked at:
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-19-26-B868
https://tmo.jpl.nasa.gov/progress_report/42-161/161T.pdf
https://iopscience.iop.org/article/10.1143/JJAP.37.L492/meta
