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Journals and Conferences
We analyze the performance features of dynamic flexible grid WDM networks from the mathematical angle. A continuous-time Markov model for links is proposed and matches Monte Carlo simulation results exactly.
We experimentally investigate impairment aware routing and end-to-end compensation in a WSON testbed. The extended control plane modules for QoT optimization and two compensation control strategies are realized and verified in terms of optical power adaptive adjustment.
A routing architecture based on PCE has been designed for the large, multi-layer and multi-domain optical networks, and a PCE-based fast reroute algorithm has been proposed for multi-failures in multi-domain optical networks.
Flexible bandwidth networking has recently been proposed as a spectrally efficient networking technology that effectively supports dynamically varying traffic demands . This networking technology provides an opportunity to maximize spectral efficiency for each of many arbitrary bandwidth channels generated using one of many possible modulation formats… (More)
The traditional approach for inter-domain Traffic Engineering Label Switching Path (TE-LSP) computation like BRPC could provide a shortest inter-domain constrained TE-LSP, but under wavelength continuity constraint, it couldn't guarantee the success of the resources reservation for the shortest path. In this paper, a Collision-aware Backward Recursive… (More)
This paper introduces the concept of Spectrum Compactness to describe fragments in flexible bandwidth multi-fiber optical networks. To minimum fragments, three algorithms named AFFF, MSFF and BSF are proposed. Simulations show BSF performs the best.
Various broad bandwidth services have being swallowing the bandwidth resource of optical networks, such as the data center application and cloud computation. There are still some challenges for future optical networks although the available bandwidth is increasing with the development of transmission technologies. The relationship between upper application… (More)
Point-to-Multipoint (P2MP) services in optical networks are more and more important for high-capacity applications. Steiner tree algorithms have been investigated to compute minimum-cost multicast tree. However, it is difficult to compute an optimal P2MP tree in multi-domain networks because of isolation of each domain. There are several algorithms based on… (More)
This paper designs a PCE-based architecture of routing, and proposes two distributed signaling schemes in PCE-based Wavelength Switching Optical Network (WSON). Simulation results based on the topology of Chinese core network are given and analyzed.