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Despite all the recent advances in the mathematical theories for constructing optical queues by optical Switches and fiber Delay Lines (SDL), there are still many problems that need to be resolved. In this paper, we tackle the following problems: (i) is it possible to construct optical queues with switches of arbitrary sizes? (ii) is there a general theory that unifies many constructions of optical...
There are several recent advances in the constructions of conflict-free optical queues using optical switches and fiber delay lines (SDL). Many of these conflict-free optical queues are constructed by 2 times 2 switches and thus suffer from the notorious crosstalk problem. To alleviate the crosstalk problem, it is suggested in the literature that one should avoid routing two packets to the same 2...
Recently, there has been a lot of attention on the constructions of optical queues by using optical Switches and fiber Delay Lines (SDL). In this paper, we consider the constructions of optical queues with a limited number of recirculations through the fibers in such SDL constructions. Such a limitation on the number of recirculations comes from practical feasibility considerations, such as crosstalk,...
The constructions of optical buffers is one of the most critically sought after optical technologies in all-optical packet-switched networks, and constructing optical buffers directly via optical switches and fiber delay lines (SDL) has received a lot of attention recently in the literature. A practical and challenging issue of the constructions of optical buffers that has not been addressed before...
In this paper, we consider the construction of an optical priority queue with a single (M+1)times(M+1) switch and M fiber delay lines. The M fiber delay lines are connected from M outputs of the switch back to M inputs of the switch, leaving one input (resp. output) of the switch for the input (resp. output) of the priority queue. It was known that with an appropriate choice of the lengths of the...
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