Design Approach of Parameterized Walsh Sequence in CDMA Application

Abstract

We Design CDMA Transmitter & Receiver for Efficiant Transmission of Message Signal Between them. For Further Transmission Process We use Random Signal Generator as Walsh Sequence Generator. Walsh Sequence Generator has set of Orthogonal Functions ie Walsh Function.It deals with program, which is able to generate Walsh functions and to demonstrate binary data spreading for CDMA. Walsh Sequence is used for Error Detecting and Error Correcting Mechanism. It used For Secure andEfficiant Communication. If any Error OccureDuring Transmission, Walsh Sequence Troubleshoot and Correct it and Passes to those Receiver which has Need. The Further investigation consider FPGA parameters like Speed and PowerDissipation..HereWe design a system with less time delay so that speed of Transmission system is more. Also Power Dissipation is little so use less architecture during FPGA Implementation. The design is implemented in VHDL code.The design found their uses in many popular applications like multiuser communications such as CDMA, WCDMA,VLSI testing, Pattern recognition as well as image and signal processing.