Abstract
In this paper, we propose a new family of wavelength-time codes, which are
based on one-dimensional optical orthogonal codes (1-D OOCs) of
cross-correlation functions of at most two. By relaxing the maximum
cross-correlation values to two, the new 2-D codes provide larger code
cardinality for accommodating more subscribers and support heavier code
weight for better code performance. It is known that the traditional
chip-synchronous assumption used in the analyses of optical codes gives a
pessimistic performance upper bound, while the newer chip-asynchronous
assumption offers a more accurate analysis. The performance of the new 2-D
codes is here analyzed under both assumptions for comparison. Under certain
conditions, our results show that the new wavelength-time codes outperform
our recently reported multiple-wavelength OOCs and 2-D codes, which were
based on 1-D OOCs of cross-correlation functions of at most one and two,
respectively.
© 2009 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription