Abstract:In this paper, the co-channel interference on the downlink channel of the MC-CDMA cellular system is investigated. The analytic formula of the co-channel interference is induced. The downlink channel performance of the MC-CDMA cellular system with co-channel interference is obtained by the Monte Carlo simulations. The simulations show that the MC-CDMA cellular system has large capacity under co-channel interference when the frequency reuse factor is 1/7.