Title :
Timing metrics for constrained codes
Author :
Patapoutian, Ara
Author_Institution :
Maxtor Corp., Shrewsbury, MA
Abstract :
The effect of data constraints on synchronization is quantified by the use of three simple timing metrics that respectively measure the ensemble average, the worst, and the best timing qualities attainable with a given binary pulse amplitude modulation (PAM) waveform. These timing metrics are computed with the help of a graph which represents the constrained PAM system. The timing metrics of the (0,k) constraint are studied in detail for selected PAM pulses
Keywords :
graph theory; modulation coding; pulse amplitude modulation; synchronisation; Cramer-Rao bound; binary PAM; constrained code; magnetic recording; pulse amplitude modulation; run-length-limited system; synchronization; timing metric; timing-error detector; Algebra; Design methodology; Error correction codes; Holography; Information theory; Iterative decoding; Optimized production technology; Parity check codes; Timing; Upper bound; Constrained coding; Cramer–Rao bound; Fisher information; magnetic recording; run-length-limited systems; shortest route; synchronization; timing-error detector;
Journal_Title :
Information Theory, IEEE Transactions on
DOI :
10.1109/TIT.2005.860473
