Perfect Pulse Enabled Direct Sequence Spread Spectrum for Enhanced Interference Rejection

This research presents a new variant of direct sequence spread spectrum - Perfect Pulse Direct Sequence Spread Spectrum (PP-DSSS) - that is a generalized, versatile signaling methodology which enables superior communications in the presence of strong, in-band interference signals. Quantitative performance of PP-DSSS is compared to a conventional DSSS signaling method, demonstrating an increase of over 25 dB of processing gain for in-band interferers and an additional 13 dB margin in permissible SIR to achieve uncoded BER thresholds. These results promise significant gains for RFID backscatter, dynamic spectrum coexistence schemes, ambient scatter communications, and other advanced wireless communication techniques.