With the concept of 3G services WCDMA is one of the important technologies that provide a very high speed communication. In this technology multiple users can communicate simultaneously to transfer different kind of data. WCDMA enables the best use of available bandwidth and the spectrum to represent a cost efficient network. But there is always the requirement to increase the security and the efficiency or the throughput of a multiuser communication in the CDMA network. The proposed paper is about to increase the efficiency in a Noisy channel. Here the paper will be performed on impulse noised network.