> I am a researcher of Master's degree , working on LEACH routing > protocol for wireless sensor networks and i need to know for which > standard does LEACH , its family ,or even Layer 3 belong to. A Google search suggests that LEACH has not been standardized. LEACH appears to have been invented by academics; several papers have been published about it. In regard to "layer 3", see http://en.wikipedia.org/wiki/OSI_model Dale