Light-tree based protection strategies for multicast traffic in transport WDM mesh networks with multifiber systems

Boworntummarat, C.; Wuttisittikulkij, Lunchakorn; Segkhoonthod, S.

doi:10.1109/icc.2004.1312816

Cited by 28 publications

(19 citation statements)

References 4 publications

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“…Two multicast protection schemes, namely one ring for one session and one ring for all sessions, have been proposed in [11,12]. Each multicast session is allocated in a separated and dedicated ring.…”

Section: Related Workmentioning

confidence: 99%

“…Multicast protection and restoration in optical mesh networks have been studied extensively in recent work. A wide range of multicast protection algorithms and strategies [6][7][8][9][10][11][12][13] have been proposed to make the multicast sessions survivable after various failure scenarios such as fiber cut and duct cut. A primary light-tree itself needs a large number of network resources, and the protection consumes more bandwidth.…”

Section: Related Workmentioning

confidence: 99%

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Optical multicast provisioning with differentiated leaf availability guarantee in WDM networks

Zhang

2010

Photon Netw Commun

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As multicast applications become more and more popular, implementing multicast in the optical domain has attracted increased attention due to its more efficient bandwidth usage. And also these services have quality-of-service requirements. In this article, the problem of cost-effective optical multicast provisioning to satisfy the differentiated leaf availability requirements is formally stated. A Mixed Integer Linear Program formulation is proposed for provisioning dedicated light-tree protection with differentiated leaf availability guarantee. The algorithm is so complex and infeasible that we also propose a feasible two-step approximate approach to solve the problem. Different from the previous schemes, our scheme finds out the primary light-trees and backup paths for destination nodes whose availability is not satisfied. Because of taking the different leaf availability requirements into account, the proposed algorithm obtains a more efficient feasible solution requiring less network resources.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Optical multicast provisioning with differentiated leaf availability guarantee in WDM networks

Zhang

2010

Photon Netw Commun

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“…Four light-tree based protection strategies for multicast traffic was presented in [11], namely, LR, LIR, OB, and OBF protection strategies. In the LR (Light-Tree Reconfiguration) and LIR (Light-Tree-Interrupted Reconfiguration), any failure that occurs in multicast network, the multicast trees will be reconfigured to overcome the situation.…”

Section: Related Workmentioning

confidence: 99%

A novel dynamic Multiple Ring-based Local Restoration for point-to-multipoint multicast traffic in WDM mesh networks

2007

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Optical networks with DWDM (Dense Wavelength Division Multiplex) can provide multiple data channels to supply high speed, high capacity to perform bandwidth-intensive multicast transmission service. Light-tree is a popular technique applied to support point-to-multipoint multicast services. Any failure during a multicast session would cause severe service loss or disruptions, especially when the faults occur near the source node. A novel ring-based local fault recovery mechanism, Multiple Ring-based Local Restoration (MRLR), for point-to-multipoint multicast traffic based on the minimum spanning tree (MST) in WDM mesh networks is proposed in this article. The MRLR mechanism dismembers the multicast tree into several disjoint segment-blocks (sub-trees) and reserves preplanned spare capacity to set up multiple protection rings in each segment-block for providing rapid local recovery. The MRLR scheme outperforms other methodologies in terms of the blocking probability, recovery time, and average hop count of protection path per session for different network topologies.

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“…The closer the link is to the source node, the more destinations would be affected [4]. Most current multicast protection methods focus on single link protection and may be classified into five major categories: (i) tree-based protection [5][6][7]; (ii) ring-based protection [8,9]; (iii) path-based protection [6,10]; (iv) segment-based protection [6,11,12];…”

Section: Introductionmentioning

confidence: 99%

Performance evaluation of p-cycle based protection methods for provisioning of dynamic multicast sessions in mesh WDM networks

Zhang

Zhong

2008

Photon Netw Commun

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Network survivability is crucial to both unicast and multicast traffic. Up to now, extensive research has been done on unicast traffic protection. Recently, due to the rapid growth of multicast applications, such as video-conferencing, high definition television (HDTV), distance learning, and multi-player on-line gaming, the problem of multicast traffic protection has started to draw more research interests. The preconfigured protection cycle ( p-cycle) method proposed by Grover offers fast speed in restoration (because p-cycles are pre-cross-connected) and high efficiency in resource utilization (because p-cycles protect both on-cycle and straddling links). So far p-cycles based protection approaches have been intensively studied for unicast traffic protection, but have been rarely investigated for multicast traffic. We propose to apply p-cycles to dynamic protection provisioning of multicast traffic, and evaluate the blocking performance in comparison to other existing multicast protection schemes. We consider three different p-cycle based multicasting protection methods, namely dynamic p-cycle (DpC) design, p-cycle based protected working capacity envelope (PWCE) design, and hybrid DpC and PWCE design. We show that p-cycle-based multicast protection approaches offer much better blocking performance, as compared with other existing multicast protection schemes. The main reasons for the much better blocking performance are attributed to the facts that (i) the selection of p-cycles is independent of the routing of the multicast light trees, (ii) there are no path/segment disjoint constraints between the

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Light-tree based protection strategies for multicast traffic in transport WDM mesh networks with multifiber systems

Cited by 28 publications

References 4 publications

Optical multicast provisioning with differentiated leaf availability guarantee in WDM networks

Optical multicast provisioning with differentiated leaf availability guarantee in WDM networks

A novel dynamic Multiple Ring-based Local Restoration for point-to-multipoint multicast traffic in WDM mesh networks

Performance evaluation of p-cycle based protection methods for provisioning of dynamic multicast sessions in mesh WDM networks

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