Dynamic traffic grooming: the changing role of traffic grooming
نویسندگان
چکیده
منابع مشابه
Traffic Grooming in Bidirectional
6 We study the minimization of ADMs (Add-Drop Multiplexers) in optical WDM bidirectional 7 rings considering symmetric shortest path routing and all-to-all unitary requests. We precisely for8 mulate the problem in terms of graph decompositions, and state a general lower bound for all the 9 values of the grooming factor C and N, the size of the ring. We first study exhaustively the cases 10 C = ...
متن کاملTraffic Grooming for WDM Rings with Dynamic Traffic
We study the problem of traffic grooming in wavelength-division-multiplexing (WDM) rings with dynamic traffic. We consider both unidirectional and bi-directional rings. In our dynamic traffic model, traffic is represented by a set of different traffic requirements that the network needs to satisfy, but at different times. Our objective is to minimize the required number of electronic add/drop m...
متن کاملTraffic Grooming on the Path
In a WDM network, routing a request consists in assigning it a route in the physical network and a wavelength. If each request uses at most 1/C of the bandwidth of the wavelength, we will say that the grooming factor is C. That means that on a given edge of the network we can groom (group) at most C requests on the same wavelength. With this constraint the objective can be either to minimize th...
متن کاملApproximating the Traffic Grooming Problem
The problem of grooming is central in studies of optical networks. In graph-theoretic terms, this can be viewed as assigning colors to the lightpaths so that at most g of them (g being the grooming factor) can share one edge. The cost of a coloring is the number of optical switches (ADMs); each lightpath uses two ADM’s, one at each endpoint, and in case g lightpaths of the same wavelength enter...
متن کاملTraffic Grooming in WDM Networks
The recent emergence of wavelength-division multiplexing technology has led to a tremendous increase in the available transmission capacity in wide area networks. Consequently, these networks may no longer be limited by transmission bandwidth, but rather by the processing capability of electronic switches, routers, and multiplexers in the network. This realization has led to a new wave of resea...
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ژورنال
عنوان ژورنال: IEEE Communications Surveys & Tutorials
سال: 2007
ISSN: 1553-877X
DOI: 10.1109/comst.2007.358970