Title :
Differential PSK block demodulation over a flat correlated Rayleigh-fading channel
Author :
Visintin, Monica
Author_Institution :
Dipartimento di Elettronica, Politecnico di Torino, Italy
fDate :
1/1/1997 12:00:00 AM
Abstract :
A technique is proposed to design a block demodulator for differential phase shift keying (DPSK) signals over a frequency flat correlated Rayleigh-fading channel. The technique allows one to drastically reduce the error floor typically present in the bit error rate (BER) curves at high signal to noise ratios (SNRs). The main idea is to use the Karhunen-Loeve expansion to have a more precise description of the fading process at the receiver end
Keywords :
Rayleigh channels; coding errors; correlation methods; demodulation; differential phase shift keying; error statistics; fading; transforms; BER curves; DPSK signals; Karhunen-Loeve expansion; SNR; bit error rate; block demodulator design; differential PSK block demodulation; differential phase shift keying; error floor reduction; flat correlated Rayleigh-fading channel; high signal to noise ratios; receiver; symbol detection; Bit error rate; Demodulation; Differential phase shift keying; Differential quadrature phase shift keying; Fading; Frequency shift keying; Phase shift keying; Rayleigh channels; Signal design; Signal to noise ratio;
Journal_Title :
Communications, IEEE Transactions on
