Pilot channel-based channel estimation method for mc-cdma system using frequency interleaving

The channel estimation method for a multi-carrier code division multiple access (MC-CDMA) communication system, the frequency interleaving according to the present invention is applied to the carrier is the respective spread symbols are transmitted for the diffused symbols generated via a spread spectrum on the transmitting side according to the transmission after the application of the pilot (P) or the inverse of the pilot (-P) to generate transmission symbols, and interleaving in the frequency domain with respect to the transmission symbol, and included in the transmission symbols at the receiving end extracting a pilot (P) and it is characterized in that for estimating a channel.