Efficient Solution of the Traffic Grooming Problem in Light-Trail Optical Networks

Ayad, A.S.; Sayed, K.M. El; Ahmed, Sheeraz

doi:10.1109/iscc.2006.65

Cited by 7 publications

(5 citation statements)

References 3 publications

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“…In a light-trail, the first node is called the convener node and the last node is called the end node. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] If a light-trail is composed of n nodes, it can support at most 2…”

Section: The Concept Of Light-trailsmentioning

confidence: 99%

“…For better bandwidth utilization, light-trails have been proposed as a promising solution. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] Moreover, it is seldom that a traffic flow in IP-centric networks requires bandwidth around the entire per wavelength capacity. Based on this rationale, it is evident that lightpath is not flexible enough and would cause vital bandwidth wastage under such a dynamic regime.…”

Section: Introductionmentioning

confidence: 99%

“…With traffic grooming capabilities support, bandwidth utilization can be more effective and certainly reach higher degree of resource saving. 1,2,12,15,17 Light-trail is a unidirectional optical path occupying single wavelength. The major advantage of light-trail over lightpath is its higher bandwidth sharing.…”

Section: Introductionmentioning

confidence: 99%

“…In this section, first we derive the optimal light-trail assignment in two network topologies used in Ref. 1. As shown in Fig.…”

mentioning

confidence: 99%

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On Dynamic Multicast Traffic Provisioning with Grooming Capabilities Support in Light-Trail Networks

Hsu¹,

Tang

2013

IJNDC

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In recent years, because of the popularity of Internet and the rapid growth of multimedia applications, the requirements of bandwidth from users increase violently in optical networks. Various multicast multimedia services also bring challenges to next generation optical networks. As the rapid advance of DWDM, the bandwidth of a single fiber link is significantly improved. However, the traditional circuit switching architecture, lightpath, has the disadvantage with lower bandwidth utilization of a single wavelength. Light-trail has been proposed as an efficient solution to support optical networks. Compared with lightpath approach, a light-trail can achieve fast provisioning for multiple connections without optical switching. The support of sub-wavelength granularity in light-trial network increases the utilization of wavelength bandwidth effectively. The most distinctive feature is that light-trail allows multiple node access, so it possesses natural multicasting capability inherently. In a light-trail, the single send by one node will be received by the downstream nodes. In other words, light-trail has the advantage of natural multicasting. Furthermore, incorporating traffic grooming into light-trail, it can obviously become a strong candidate to support multicasting and multi-granularity bandwidth demands in the future. In this article, we propose a dynamic multicast routing algorithm with traffic grooming consideration in light-trail networks, named Dynamic Light-Trail-based Multicast Routing algorithm (DLTMR). For static traffic, we use a set of ILP formulations to calculate the optimal solution for minimizing the number of established light-trails. In the simulation, we use various network topologies and variant limitation of network resource to verify that DLTMR can efficiently improve blocking performance in the light-trail networks.

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Section: The Concept Of Light-trailsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…In this section, first we derive the optimal light-trail assignment in two network topologies used in Ref. 1. As shown in Fig.…”

mentioning

confidence: 99%

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On Dynamic Multicast Traffic Provisioning with Grooming Capabilities Support in Light-Trail Networks

Hsu¹,

Tang

2013

IJNDC

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show abstract

“…LT efficiency is compared to OBS and lightpath routed networks in [31]. Other LT design optimization strategies are presented in [40,8,5,91]. Suggestions for a mesh implementation of light-trail are found in [38] and bi-directional LT's are introduced in [55] and [41] in the context of Resilient Packet…”

Section: Light-trail Literaturementioning

confidence: 99%

Fiber optic networks: fairness, access controls and prototyping

Somani

VanderHorn

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A novel auxiliary graph model for effective dynamic traffic grooming in light-trail optical WDM mesh networks

Lin

Zhuang

2019

Photon Netw Commun

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Efficient Solution of the Traffic Grooming Problem in Light-Trail Optical Networks

Cited by 7 publications

References 3 publications

On Dynamic Multicast Traffic Provisioning with Grooming Capabilities Support in Light-Trail Networks

On Dynamic Multicast Traffic Provisioning with Grooming Capabilities Support in Light-Trail Networks

Fiber optic networks: fairness, access controls and prototyping

A novel auxiliary graph model for effective dynamic traffic grooming in light-trail optical WDM mesh networks

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