On-line routing and wavelength assignment for dynamic traffic in WDM ring and torus networks
نویسندگان
چکیده
منابع مشابه
An On-Line Routing and Wavelength Assignment Algorithm for Dynamic Traffic in a WDM Bidirectional Ring
We develop an on-line routing and wavelength assignment (RWA) algorithm for a WDM bidirectional ring with N nodes. The algorithm dynamically supports all k-allowable traÆc matrices, where k denotes an arbitrary integer vector (k1; :::; kN ), and node i, 1 i N , can transmit at most ki wavelengths and receive at most ki wavelengths. Our algorithm uses d PN i=1 ki=3e wavelengths in each ring dire...
متن کاملWavelength Assignment for Dynamic Traffic in Multi-fiber WDM Networks
We propose an on-line wavelength assignment algorithm for multi-fiber WDM networks, in which lightpaths are established and released dynamically. For a given number of fibers per link and number of wavelengths per fiber, the algorithm aims to minimize the blocking probability. It may also be used to reduce the number of wavelengths required for a given tolerable blocking probability. Simulation...
متن کاملWavelength Assignment and Routing in WDM networks
With wavelength division multiplexing (WDM) several optical signals can be transferred in a single optical ber [6][7]. This technology allows more e cient use of the huge capacity of an optical ber but also poses new network design and management problems, especially when wavelength conversion is not possible in the nodes. In this paper we consider the routing and wavelength assignment problem ...
متن کاملPerformance analysis of multicast routing and wavelength assignment protocol with dynamic traffic grooming in WDM networks
The need for on-demand provisioning of wavelength routed channels with service differentiated offerings within the transport layer has become more essential due to the recent emergence of high bit rate IP network applications such as multimedia conferencing systems, video on demand systems, real-time control systems, etc. Diverse optical transport network architectures have been proposed in ord...
متن کاملOn Routing and Wavelength Assignment in Wdm Networks
With the help of advanced technology, WDM networks nowadays can support up to more than 100 wavelength on a single fiber. This feature brings new challenges to routing and wavelength assignment (RWA) problem, which is a NP-hard problem. There are three existing categories of integer linear programming (ILP) formulations to solve this problem optimally, namely, link-based, path-based and maximal...
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ژورنال
عنوان ژورنال: IEEE/ACM Transactions on Networking
سال: 2006
ISSN: 1063-6692
DOI: 10.1109/tnet.2006.872549