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  1. No Access

    Article

    Virtual Topology Design and Reconfiguration of Virtual Private Networks (VPNs) over All-Optical WDM Networks

    This paper studies the virtual topology design and reconfiguration problem of virtual private networks (VPNs) over all-optical WDM networks. To support VPN service, a set of lightpaths must be established over...

    Jun Zheng, Bin Zhou, Hussein T. Mouftah in Photonic Network Communications (2004)

  2. No Access

    Article

    A Novel Fast Multicast Algorithm with Enhanced Survivability in WDM Optical Networks

    WDM optical networking technology is expected to facilitate bandwidth-intensive multicast application by establishing a “light-tree” which regards the source node as the root and all the destination nodes as t...

    Junjie Li, Hanyi Zhang, Bingkun Zhou, Yili Guo in Photonic Network Communications (2004)

  3. No Access

    Article

    Heuristic Algorithms for Grooming of Arbitrary Traffic in WDM Ring Networks

    In a wavelength division multiplexing (WDM) network, sub-wavelength traffic streams can be elaborately arranged in wavelength channels to minimize the number of required electronic end systems, known as the tr...

    Yueguang Jiao, Bingkun Zhou, Hanyi Zhang, Yili Guo in Photonic Network Communications (2004)

  4. No Access

    Article

    A Novel Algorithm for Fast Detection of Network Failure

    Fast failure detection is critical to traffic protection/restoration in a high-speed network. Generally, the way to detect failures is to periodically exchange keep-alive messages by layer 3 protocols. In trad...

    Donghui Gao, Zhiyu Zhou, Hanyi Zhang in Photonic Network Communications (2005)

  5. No Access

    Article

    Grooming of Arbitrary Traffic in Optical WDM Mesh Networks Using a Genetic Algorithm

    In this paper, a genetic algorithm is proposed for grooming of arbitrary traffic in optical mesh networks. Traffic streams are routed in the wavelength division multiplexing (WDM) grooming networks that compri...

    Yueguang Jiao, Bingkun Zhou, Hanyi Zhang, Yili Guo in Photonic Network Communications (2005)

  6. No Access

    Article

    Routing and Wavelength Assignment in Optical Networks Using Logical Link Representation and Efficient Bitwise Computation

    In this paper, we propose and evaluate a new approach for implementing efficient routing and wavelength assignment (RWA) in wavelength division multiplexing (WDM) optical networks. In our method, the state of ...

    Bin Zhou, Mostafa A. Bassiouni, Guifang Li in Photonic Network Communications (2005)

  7. No Access

    Article

    Ant Colony Optimization for Dynamic RWA in WDM Networks with Partial Wavelength Conversion

    Dynamic routing and wavelength assignment (RWA), which supports request arrivals and lightpath terminations at random times, is needed for rapidly changing traffic demands in wavelength division multiplexed, (...

    Zhu Na, Sun Hai**, Zhou Naifu in Photonic Network Communications (2006)

  8. No Access

    Article

    Wavelength assignment with sparse wavelength conversion for optical multicast in WDM networks

    This paper addresses the problem of multicast wavelength assignment for sparse wavelength conversion (MWA-SWC) in wavelength-routed wavelength-division-multiplexing (WDM) networks. It aims to optimally allocat...

    Gee-Swee Poo, Yinzhu Zhou in Photonic Network Communications (2006)

  9. No Access

    Article

    Hybrid protection in WDM networks with shared risk link groups

    In wavelength-division multiplexing net- works with shared-risk link groups (SRLGs), it remains as a challenge to provide network protections with low-blocking probabilities and short average protection-swi- t...

    Xu Shao, Gaoxi **ao, Luying Zhou, **aofei Cheng… in Photonic Network Communications (2006)

  10. No Access

    Article

    Concurrent enhancement of network throughput and fairness in optical burst switching environments

    In this article, we propose and evaluate a preemption-based scheme for the concurrent improvement of network throughput and burst fairness in optical burst switched networks. The scheme uses a preemption weigh...

    Bin Zhou, Mostafa A. Bassiouni in Photonic Network Communications (2007)

  11. No Access

    Article

    Connection availability analysis of span-restorable mesh networks

    Dual-span failures are the key factor of the system unavailability in a mesh-restorable network with full restorability of single-span failures. Availability analysis based on reliability block diagrams is not...

    Ling Zhou, Marcel Held, Urs Sennhauser in Photonic Network Communications (2007)

  12. No Access

    Article

    Reducing vulnerability of shared-path protection subject to double-link failures in WDM mesh networks

    Shared-path protection (SPP) is a capacity- efficient mechanism to provide 100% single-link failure protection in WDM mesh networks. After the first link failure, however, if reconfiguration is unavailable, a ...

    Xu Shao, Luying Zhou, Teck Yoong Chai… in Photonic Network Communications (2008)

  13. No Access

    Article

    A wavelength-buffering scheme for dynamic traffic in optical wavelength-division multiplexing networks

    In optical wavelength-division multiplexing (WDM) networks, traffic can be very “bursty” at a fine time scale, even though it may seem to be smooth at coarser scales (e.g., Poisson or Poisson-related traffic)....

    Nan Hua, ** Zheng, Hanyi Zhang, Bingkun Zhou in Photonic Network Communications (2008)

  14. No Access

    Article

    Performance analysis of an improved soft preemptive scheme for unevenly distributed traffic in optical wavelength-division multiplexing networks

    In optical wavelength-division multiplexing (WDM) networks, traffic can be unevenly distributed across the network causing inefficient utilization of resources. To solve this problem, an improved soft preempti...

    Nan Hua, ** Zheng, Hanyi Zhang, Bingkun Zhou in Photonic Network Communications (2008)

  15. No Access

    Article

    Shared partial path protection in WDM networks with shared risk link groups

    For 100% shared risk link group (SRLG) failure protection, conventional full path protection has to satisfy SRLG-disjoint constraints, i.e., its working path and backup path cannot go though the same SRLG. Wit...

    Xu Shao, Luying Zhou, **aofei Cheng… in Photonic Network Communications (2008)

  16. No Access

    Article

    Avoidance of multicast incapable branching nodes for multicast routing in WDM networks

    In this article we study the multicast routing problem in all-optical WDM networks under the spare light splitting constraint. To implement a multicast session, several light-trees may have to be used due to t...

    Fen Zhou, Miklós Molnár, Bernard Cousin in Photonic Network Communications (2009)

  17. No Access

    Article

    A novel multicast routing algorithm in sparse splitting WDM network with power attenuation constraint

    With the increasing requirement for communication bandwidth, all-optical network has been more and more important owning to its large traffic capability. Multicasting is an important technology in wavelength d...

    Jian** Wang, Junling Yuan, **anwei Zhou, **aosong Yu in Photonic Network Communications (2010)

  18. No Access

    Article

    Multicast routing and wavelength assignment with delay constraint in WDM networks with sparse wavelength conversions

    With the developments in multimedia and other real-time group applications, the question of how to establish multicast trees satisfying Quality-of-Service (QoS) requirements is becoming a very important proble...

    Qiwu Wu, **anwei Zhou, Jian** Wang, Zhizhong Yin… in Photonic Network Communications (2010)

  19. No Access

    Article

    Hypo-Steiner heuristic for multicast routing in all-optical WDM mesh networks

    In sparse light splitting all-optical WDM networks, the more destinations a light-tree can accommodate, the fewer light-trees and wavelengths a multicast session will require. In this article, a Hypo-Steiner l...

    Fen Zhou, Miklós Molnár, Bernard Cousin in Photonic Network Communications (2010)

  20. No Access

    Article

    Performance enhancement for impairment-aware SRLG failure protection in wavelength-routed optical networks

    With the increase of size and number of shared risk link groups (SRLGs) in WDM networks, path protection tends to have longer working paths and backup paths due to SRLG-disjoint constraints, which makes physic...

    Xu Shao, **aofei Cheng, Yong Kee Yeo, Luying Zhou… in Photonic Network Communications (2010)

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