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The standard approach of using multi-commodity network flow (MCNF) techniques for designing optimal WDM networks often lead to computationally difficult Mixed Integer Linear Programs (MILP) which work only on small networks. Modern Operations Research (OR) techniques may be helpful when developing efficient algorithms for large WDM networks. This paper explores the Branch, Price and Cut techniques...
In hierarchical sensor networks, higher powered relay nodes can be deployed to act as cluster heads. The lifetime of such a network is primarily determined by the lifetime of the relay nodes. Recently, it has been shown that the use of a Mobile Data Collector (MDC), which moves through the sensor network to collect data, can improve the performance of the network in a number of ways. We propose a...
The optical reach (the distance an optical signal can travel before the signal quality degrades to a level that necessitates regeneration) ranges from 500 to 2000 miles. To establish a lightpath of length greater than the optical reach, it is necessary to regenerate optical signals. In a translucent optical network, there are regeneration points, where the signal undergoes Optical-Electronic-Optical...
Since the optical reach (the distance an optical signal can travel before its quality degrades to a level that necessitates regeneration) ranges from 500 to 2000 miles, regeneration of optical signals is essential to establish lightpaths of lengths greater than the optical reach. In a translucent optical network, the optical signal is regenerated at selected nodes of the network before the signal...
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