Timing-based active watermarking schemes are developed to trace back attackers through
step** stone connections or anonymizing networks. By slightly changing packet timing …

This paper is an introduction to survivability of WDM networks. All the main optical protection
techniques proposed as far as now for the WDM layer are classified and reviewed. In …

The growing demand for always-on and low-latency cloud services is driving the creation of
globally distributed datacenters. A major factor affecting service availability is reliability of the …

The Internet revolution. Once, the public was delighted with 14.4 modem access and
fascinated by low-tech Web site content. But not for long. Technology has raced to keep up …

This article investigates complexity and approximability properties of combinatorial
optimization problems yielded by the notion of Shared Risk Resource Group (SRRG). SRRG …

Optical networks and the related technologies, network management software and services
have undergone remarkable developments, and such networks are now the ultra-high …

Communication reliability is a desired property in computer networks. One key technology to
increase the reliability of a communication path is to provision a disjoint backup path. One of …

We propose a novel genetic algorithm for solving the dynamic routing and wavelength
assignment (DRWA) problem in wavelength-routed optical networks. The algorithm not only …

This article considers the problem of real-time provisioning of optical channels in hybrid IP-
centric DWDM-based networks. First, we present an overview of the emerging architectural …

A mesh-restored lightpath in an optical network has a primary route and a diversely routed
backup route. The wavelength channels on the primary route of a mesh-restored lightpath …