PSSS - parallel sequence spread spectrum a physical layer for RF communication

Parallel sequence spread spectrrim PSSS pro1ides a physical layer for RF data communication. It is based on an overlap of cyclically shified binary spreading sequences modulated with Mary PAM. QAM and PSK. Coding, modulation and channel equa1ization can be integrated and allow a flexiable tradeoff hetween data rate, energy efficiency and multipath fading resistonce at a low electronic complexity. This paper describes the principles of the transmission procedure including the spreading, overlap and modulation. Some results are shown from AWGN-channels with different modulation procedurers.