POWER LINE CARRIER COMMUNICATION APPARATUS, AND FRAME

PROBLEM TO BE SOLVED: To provide a power line carrier communication apparatus capable of avoiding a communication fault with comparatively simple processing by using a small scale circuit without deteriorating a channel utilizing efficiency in power line carrier communication. SOLUTION: The communication apparatus connected to a power line (1) includes: a means for detecting a time change in signal deterioration on the basis of noise superimposed on the power line for a period in excess of a half the period of the AC voltage; a means for deciding periodic noise from the results of the detection; and a schedule means for configuring frames in a way of avoiding the periodic noise and carries out time division multiple access for data transmission. COPYRIGHT: (C)2008,JPO&INPIT