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Alignment Jitter Accumulation in a Chain of Processing Node Regenerators
IEICE TRANSACTIONS (1976-1990)
Publication Date: 1990/10/25
Print ISSN: 0000-0000
Type of Manuscript: Special Section PAPER (Special Issue on Communication Theory and Its Applications)
Category: Transport System
Full Text: PDF>>
It is shown that significant accumulation of alignment jitter can result if there exists any delay difference between signal and timing paths in respective regenerators in a chain. This phenomenon of extra alignment jitter accumulation is analyzed by using Chapman model. Dependence of accumulation on timing extrator Q and delay difference is predicted through the theoretical analyses. Results of computer simulation are found to be in good agreement with theory. It is also revealed by the simulation that additional accumulation can be entailed, which is explained in terms of jitter fine structures. Methods for alleviating extraaccumulations and desigh considerations for time cross hair budget are also discussed.