Pre-equalization technique in multi-carrier CDMA method for frequency selective fading over wireless communication channels

Abstract

Wireless message is a technique of broadcasting data from one place to another place, with no using other bond like cables, wires or other similar items. The issues occurred in wireless communication technology are the error rates are obtained in the differential detection for any combination of Doppler spread is high. To solve the above issue, consideration of the frequency selective slow fading channels for the lower error rate is taken. A novel Joint Pre-Equalization for Multi-carrier CDMA System over Frequency Selective Wireless Communication Channels is proposed. This paper introduces another look at the issue of cloud signals over direct fading channels. The possibility of Frequency Selective slow fading channels, those channel drive reaction changes at a rate impressively slowly completed the transmitted baseband signs. In the frequency domain, selective entails that the bandwidth of the base band signal of the channel is much greater than Doppler spread of the channel. In our proposed work for joint pre-equalization the technique Multi-carrier CDMA is used for high speed data transmission in wireless communications for reducing the bit error rate. The proposed Multi-carrier CDMA uses two sophisticated technology for reducing error rate that was included for example orthogonal frequency division multiplex (OFDM) and also the code division multiple access (CDMA).