FPP-based waveform coding signals evaluations

Although bi-orthogonal coding requires half the bandwidth of the other Hadamard-type waveform codes, such coding schemes are attractive only when large bandwidth is available, the finite projective plane (FPP) based waveform coding schemes are proposed and evaluated through three performance metrics, which are with similar error performance and cross correlation with Hadamard-type waveform codes. Nevertheless, the bandwidth requirements for the proposed FPP schemes grow in a quadratic way, but not exponentially with the values of message bit numbers (k), which show obvious advantages over the bi-orthogonal scheme when k ≥ 6 at the expanse of little codeword error performance.