Title :
Novel analytical performance bounds for symbol-by-symbol decoding of digital-data impaired by ISI and AWGN
Author :
Baccarelli, E. ; Cusani, R. ; Galli, S.
Author_Institution :
Rome Univ., Italy
fDate :
3/1/1997 12:00:00 AM
Abstract :
New analytical upper bounds are derived for the performance of symbol-by-symbol maximum-likelihood (ML) Abend-Fritchman-type detectors for multi-amplitude/phase-modulated digital sequences transmitted over time-dispersive (generally) time-variant linear channels introducing finite intersymbol interference (ISI) and additive white Gaussian noise (AWGN). The proposed bounds are obtained starting from a novel form of the standard Bhattacharyya bound and take explicitly into account the allowed decoding delay. Both deterministic and random multipath slow-fading Rayleigh transmission ISI channels are considered. Simulation results obtained for some test channels of practical interest show the tightness of the derived analytical bounds
Keywords :
Gaussian noise; Rayleigh channels; amplitude modulation; data communication; fading; intersymbol interference; maximum likelihood decoding; maximum likelihood detection; multipath channels; phase shift keying; sequential decoding; time-varying channels; white noise; AWGN; Bhattacharyya bound; ISI; additive white Gaussian noise; analytical performance bounds; analytical upper bounds; decoding delay; deterministic sequence; digital data; finite intersymbol interference; maximum-likelihood Abend-Fritchman-type detectors; multi-amplitude/phase-modulated digital sequences; random multipath slow-fading Rayleigh channels; symbol-by-symbol decoding; time-dispersive time-variant linear channels; AWGN; Additive white noise; Detectors; Intersymbol interference; Maximum likelihood decoding; Maximum likelihood detection; Performance analysis; Phase detection; Sequences; Upper bound;
Journal_Title :
Information Theory, IEEE Transactions on
