FBPSK, POWER AND SPECTRALLY EFFICIENT MODULATION FOR PCS AND SATELLITE BROADCASTING APPLICATIONS

FBPSK, A new modulation technique which leads to nonlinear amplified p ower efficient BPSK modulated systems is presented, This technique has an offset quadrature modulator structure, and uses the nonlinear FQPS K processor to smooth the pulse shape of transmit data, FBPSK can be n onlinearly amplified using C class type of amplifiers with minimum spe ctral regeneration leading to power and spectrally efficient systems c ompared to conventional BPSK in both satellite and PCS applications, i t can deliver 1 Watt output power compared to 150 mWatt for BPSK, and reduces spectral regeneration by a minimum of 18 dB in wireless LAN ap plications, FBPSK is compatible with BPSK, and can be demodulated usin g conventional BPSK receivers, The BER performance of FBSPK in AWGN ch annels has less than 1.1 dB degradation compared to theoretical BPSK f or BER of 10-4, FBPSK increases power output, spectral efficiency, ext ends battery life, and reduces radiation compared to BPSK modulated sy stems.