Browsing by Author "Lou, JK"

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An efficient tag-based routing algorithm for the backward network of a bidirectional general shuffle-exchange network
(2006-04-01)
Chen, CY
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Lou, JK
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應用數學系
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Department of Applied Mathematics
This letter considers the problem of designing efficient routing algorithms for the backward network of a bidirectional general shuffle-exchange network (BNBGSEN for short); switch elements in the network are of size k x k. It has been shown in [1] that the algorithm in [5] can be used to obtain (as many as k) backward control tags for a source j to get to a destination i in a BNBGSEN. In this letter, we show that a BNBGSEN has a wonderful property: for each destination i, there are two backward control tags associated with it such that every source j can get to i by using one of the two tags. We use this property to derive an efficient tag-based routing algorithm.