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Canhui Ou
Researcher at University of California, Davis
Publications - 20
Citations - 1190
Canhui Ou is an academic researcher from University of California, Davis. The author has contributed to research in topics: Optical mesh network & Path protection. The author has an hindex of 16, co-authored 20 publications receiving 1177 citations. Previous affiliations of Canhui Ou include Sprint Corporation & University of California.
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Journal ArticleDOI
New and improved approaches for shared-path protection in WDM mesh networks
TL;DR: It is proved that the problem of finding an eligible pair of working and backup paths for a new lightpath request requiring shared-path protection under the current network state is NP-complete and a heuristic is developed to compute a feasible solution with high probability.
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Path-protection routing and wavelength assignment (RWA) in WDM mesh networks under duct-layer constraints
TL;DR: This study addresses the routing and wavelength-assignment problem in a network with path protection under duct-layer constraints in a wavelength-division multiplexing (WDM) network in which failures occur due to fiber cuts.
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Traffic grooming for survivable WDM networks - shared protection
TL;DR: This work investigates the survivable traffic-grooming problem for optical mesh networks employing wavelength-division multiplexing (WDM), and proposes effective heuristics for grooming a connection request with shared protection.
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Subpath protection for scalability and fast recovery in optical WDM mesh networks
Canhui Ou,Hui Zang,N.K. Singhal,Keyao Zhu,L. Sahasrabuddhe,R. A. MacDonald,Biswanath Mukherjee +6 more
TL;DR: Comparisons between subpath protection and shared-path protection on a nationwide network with dozens of wavelengths per fiber show that, for a modest sacrifice in resource utilization, sub path protection achieves improved survivability, much higher scalability, and significantly reduced fault-recovery time.
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PHOTO: an efficient shared-path-protection strategy based on connection-holding-time awareness
TL;DR: The authors propose to exploit knowledge of connection holding time to design an efficient algorithm, called PHOTO, for the dynamic provisioning of shared-path-protected connections in optical mesh networks to minimize resource overbuild (RO) due to backup capacity and hence achieve resource-usage efficiency.