Title :
DPSK versus pilot-aided PSK MAP equalization for fast-fading channels
Author :
Davis, Linda M. ; Collings, Iain B.
Author_Institution :
Global Wireless Syst. Res., Lucent Technol., Sydney, NSW, Australia
fDate :
2/1/2001 12:00:00 AM
Abstract :
This letter compares pilot-aided phase-shift keyed (PSK) and differential PSK (DPSK) modulation when using new maximum a posteriori joint channel estimation and equalization receivers with frequency-selective fast-fading channels. We conclude that pilot-aided PSK has superior bit-error rate performance in this case. However, at low signal-to-noise ratio, performance is similar, and DPSK is competitive due to reduced receiver complexity
Keywords :
differential phase shift keying; equalisers; error statistics; fading channels; maximum likelihood estimation; receivers; DPSK; bit-error rate performance; differential PSK; equalization; fast-fading channels; frequency-selective fast-fading channels; maximum a posteriori joint channel estimation; phase-shift keying; pilot-aided PSK MAP equalization; receiver complexity; receivers; signal-to-noise ratio; Additive white noise; Australia; Channel estimation; Demodulation; Differential quadrature phase shift keying; Equalizers; Frequency estimation; Phase modulation; Phase shift keying; State estimation;
Journal_Title :
Communications, IEEE Transactions on
