Effect of High Power Amplifier on WCDMA

This paper analyzes the performance of Wireless CDMA when high power amplifier use in the processing block of this. The simulation is carried out on MATLAB 7.8.1, the result shows the BER, MER comparison of WCDMA with using and without using high power amplifier.WCDMA use noise like broadband frequency spectrum where it has high resistant to multipath fading as this was not present in conventional 2nd generation communication system.In this work a PN sequence generation based on Residue Arithmetic is investigated with an effort to improve the performance of existing interference-limited CDMA technology for mobile cellular system. This interference limited performance is due to the fact that all existing CDMA codes used in mobile cellular standard does not consider external interference , multipath propogation ,Doppler Effect etc.The world first cellular network i.e.,Advance Mobile Phone System (AMPS)-based on analog radio transmission technology was put into service in early 1980s .It uses separate frequencies.