VLSI Implementation of 64 Bit PCS Generator using Non Linear Feedback Shift Register in Communication Systems

Spread Spectrum is wireless communication in which the baseband data is spread over the entire available bandwidth. In the project, data spread is done by Pseudo Chaotic Sequences (PCS). Spread Spectrum is mainly used to overcome the interference problems associated with data transfer systems and to deliver a heightened secure transmission of data. In the project, we specify the design and implementation of Direct Sequence Spread Spectrum (DSSS) system with PCS generator. The prototype is generation of 64-bit Chaotic sequences and implementing DSSS system with generated sequences. The length of spreading sequences is extended and the auto correlation and cross correlation properties are verified for the generated sequences. The low cross correlation value reveals that performance of DSSS system with Chaotic sequences is comparatively better than conventional PN sequences.