Masaaki Katayama Takaya Yamazato Hiraku Okada A mathematical model of noise in narrowband power line communication systems. 1267-1276 2006 24 IEEE Journal on Selected Areas in Communications 7 http://doi.ieeecomputersociety.org/10.1109/JSAC.2006.874408 db/journals/jsac/jsac24.html#KatayamaYO06