Thank u for reply
But the document u have given it can't help me in searching of the laws(protocals) used in powerline communication
e.g
the maximium frequence i can use on powerlines for modulation of signal
i can't find PSK chip for my project.
Actually i am student of Electronic Engg. and doing a project on serial communication through power lines in home between two computers.
i m using PSK modulation as sending signal on power line.
here in my country 220V and 50Hz frequency is used...