Title :
The cut-off rate of digital radio-links impaired by time-correlated multipath phenomena
Author :
Baccarelli, E. ; Galli, S. ; Fasano, A.
Author_Institution :
INFOCOM Dept., Rome Univ., Italy
Abstract :
The symmetric cut-off rate is derived for quadrature-amplitude-modulated (QAM) block-coded data-transmissions over noisy links impaired by time-correlated multipath-phenomena which give rise to Rayleigh-distributed randomly time-variant intersymbol Interference (ISI) effects. The presented formulas for the cut-off rate are new; they are derived from a random coding bound developed “ad hoc” for bounding the ensemble-averaged block-error probability of a maximum likelihood (ML) decoder supported by perfect channel-state-information (CSI). The assumption of time-correlated ISI phenomena introduces memory in the link and makes the underlying ISI-channel a continuous-state channel with memory
Keywords :
Rayleigh channels; block codes; digital radio; error statistics; intersymbol interference; maximum likelihood decoding; modulation coding; multipath channels; radio links; radiofrequency interference; time-varying channels; ISI; QAM block-coded data-transmissions; Rayleigh-distributed randomly time-variant intersymbol Interference effects; channel-state-information; continuous-state channel; cut-off rate; digital radio-links; ensemble-averaged block-error probability; maximum likelihood decoder; memory; noisy links; quadrature-amplitude-modulated block-coded data-transmissions; random coding bound; time-correlated multipath phenomena; time-correlated multipath-phenomena; Degradation; Demodulation; Design optimization; Fading; Guidelines; Intersymbol interference; Maximum likelihood decoding; Modulation coding; Quadrature amplitude modulation; Signal design;
Conference_Titel :
Communications, 1998. ICC 98. Conference Record. 1998 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-4788-9
DOI :
10.1109/ICC.1998.682893
