COMMUNICATION SYSTEM, TRANSMISSION DEVICE, RECEPTION DEVICE, AND COMMUNICATION METHOD

摘要

Provided is a communication system which can realize a high frequency use efficiency without requiring cooperation between a plurality of users. The communication system performs communication by using frequency channels set by dividing a frequency band. The communication system mutually overlaps the frequency channels adjacent on the frequency so as to allow an inter-channel interference. Alternatively, a transmission/reception device transmits and receives a signal by allowing an inter-code interference at a waveform level in each of the channels in order to narrow the band width dedicated to each of the frequency channels. The transmission/reception device includes an ICI removal and an ISI compensation filter (111) which functions as an ICI removal filter for removing an inter-channel interference or an ISI compensation filter for compensating the inter-code interference at the waveform level in each of the frequency channels.