Distributed dynamic grooming routing and wavelength assignment in WDM optical mesh networks

De, Tanmay; Jain, Puneet; Pal, Ajit

doi:10.1007/s11107-010-0286-7

Cited by 22 publications

(9 citation statements)

References 27 publications

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“…In WDM optical networks, multicast protection approach can be classified into following five categories: (1) tree-based protection [15,16], (2) ring-based protection [17], (3) path-based protection [18][19][20][21], (4) segment-based protection [22,23], and (5) cycle-based protection [24][25][26][27]. Generally, to protect a light-tree for optical multicast, a pair of link-disjoint or arc-disjoint light-trees [23] is deployed.…”

Section: Previous Workmentioning

confidence: 99%

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Multicast protection and grooming scheme in survivable WDM optical networks

Pradhan

Ghose

2016

Optical Switching and Networking

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Section: Previous Workmentioning

confidence: 99%

“…In these networks a lightpath [1,2] is established between any two nodes by allocating same wavelength on all links along the chosen route. The requirement that the same wavelength must be used on all links along the chosen route is known as wavelength continuity constraint [3].…”

Section: Introductionmentioning

confidence: 99%

Multicast protection and grooming scheme in survivable WDM optical networks

Pradhan

Ghose

2016

Optical Switching and Networking

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“…Crouser et al [11] provided distributed traffic grooming algorithm for path topology and a static virtual topology to support it. De et al [12] presented a distributed algorithm for dynamic traffic grooming problem that allocates resources and perform grooming operation based on local information available on each node. Coimbra et al [13] proposed a distributed algorithm for dynamic traffic grooming problem and explored the benefits of sparse grooming (i.e., only a subset of the network nodes have grooming capability).…”

Section: Previous Workmentioning

confidence: 99%

Traffic Grooming based on Light-trail in Wavelength Routed Optical Network

2015

International Academy of Engineers (IA-E) April 24-25, 2015 Pattaya (Thailand)

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Abstract-In wavelength routed optical networks, the number of wavelength channels is limited due to technological limitation and each wavelength channel as well as each lightpath support traffic in the Gbps range. In reality, we observe that the majority of individual connection request require a bandwidth in the Mbps range. Therefore, to utilize the network resources like bandwidth, transceivers effectively, we need to be efficiently groomed or multiplexed several low speed traffic requests into a high speed/capacity lightpath. The entire wavelength channel of this lightpath is used exclusively by the source-destination node pair. Data cannot be transmitted or received by the intermediate nodes along the lightpath. Therefore, the wavelength capacity again may be underutilized. To overcome this drawback a novel technique known as light-trail came into existence. The light-trail is a generalized version of the lightpath to avoid the inability of intermediate nodes to use a wavelength connection. In this work, we have investigated the static traffic grooming problem for wavelength routed optical networks. The work proposed a traffic grooming algorithm to maximize the network throughput for wavelength routed mesh optical networks using static light-trail. The effectiveness of the proposed approach has been established through extensive extensive simulation on different sets of traffic demands with different bandwidth granularities for different network topologies and compared the approach with existing algorithms.

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“…LightTree Division Adjacent Node Component based Grooming scheme (LTD-ANCG) mentioned by Lin et al [20] helped to improve the efficiency of resource utilization and lowers the OEO conversion overhead in mesh networks. The authors in [21] proposed distributed dynamic grooming routing and wavelength assignment (DDGRWA) for distributed traffic grooming in WDM mesh networks which also includes virtual topology construction, reconfiguration, routing and wavelength assignment in the distributed environment assuming incoming traffic to be dynamic in nature. A priority based dispersion-reduced wavelength assignment (PDRWA) scheme is proposed in [22] to reduce the overall dispersion in optical network without increasing blocking probability and total propagation loss.…”

Section: Related Workmentioning

confidence: 99%

Design of light-tree based multicast traffic grooming in WDM mesh networks

Pradhan

Araiyer

2014

J Opt

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In this paper, we design an optimization problem for grooming of multicast traffic requests in WDM mesh networks. The objective is to minimize the network cost by minimizing the number of optical splitters and at the same time minimizing the total number of wavelengths used in the network. We propose a heuristic algorithm called Priority based Sub-Light Tree Grooming (PSLTG) to achieve scalability for larger networks. PSLTG tries to satisfy all multicast requests by constructing sub-light trees. A mathematical formulation is derived to minimize the network cost associated with the number of optical splitters and number of wavelengths used in the networks. Simulations are conducted on several standard networks to compare the cost and required number of wavelengths used in the networks. The results thus obtained by comparison, helped us to conclude that the proposed approach PSLTG produces better performance than well known Sub-Light Tree Saturated Grooming (SLTSG) and Multicast Traffic Grooming (MTG) algorithms.Keywords Lightpath · Light-tree · Multicast · Multicast routintg and wavelenght assignment (MRWA) · Splitter · Traffic grooming · Wavelength division multiplexing (WDM) A. K. Pradhan ( ) · S. Araiyer · T. De

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Distributed dynamic grooming routing and wavelength assignment in WDM optical mesh networks

Cited by 22 publications

References 27 publications

Multicast protection and grooming scheme in survivable WDM optical networks

Multicast protection and grooming scheme in survivable WDM optical networks

Traffic Grooming based on Light-trail in Wavelength Routed Optical Network

Design of light-tree based multicast traffic grooming in WDM mesh networks

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