A novel node architecture for optical networks: Modeling, analysis and performance evaluation

Lazzez, A.; Khlifi, Yassine; Fatmi, Sihem Guemara El; Boudriga, Noureddine; Obaidat, Mohammad S.

doi:10.1016/j.comcom.2006.08.023

Cited by 19 publications

(16 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A data burst consists of multiple segments which are incorporated in a descending priorities order. Also, a Jet-like signaling approach and a QoS contention resolution based on wavelength converters and optical buffering are adopted [7]. The OBS core node architecture proposed in [8] is used to implement the grooming capability.…”

Section: Grooming Capable Core Node Architecturementioning

confidence: 99%

“…Its architecture is based on the concept of Virtual Optical Memory (VOM) which is used to store transmission data unit for a predefined periods of time. Recall, that in a previous work [7], we have proposed a static grooming algorithm that can aggregate in one burst, short bursts which are transmitted to the same edge node. Our main contributions in this paper are: (1) the design of the grooming unit architecture based on temporal buffering, (2) the proposal of a signaling scheme and a grooming control process that optimize the grooming operation (3) the development of a dimensioning and engineering framework through the management of optical buffers occupancy state.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dynamic optical burst grooming in OBS networks

Abdallah

Boudriga

2012

2012 14th International Conference on Transparent Optical Networks (ICTON)

View full text Add to dashboard Cite

In this paper, we investigate the design and the implementation of dynamic optical bursts grooming in segmented-based traffic OBS networks. The objective is to aggregate into one burst, different overlapping short bursts which are transmitted to the same destination. This process is executed at the grooming unit of the core node. We propose a design and a physical implementation of this unit based on the Virtual Optical Memory (VOM©) component. The VOM is a RAM-like memory which is used for temporal storing of data segments. Moreover, a signaling scheme and a grooming control module are developed in order to manage the grooming operation. In addition, a dimensioning framework is carried out and a performance study is performed in order to evaluate the grooming process according the grooming factor, VOM capacity, and maximum storing period.

show abstract

Section: Grooming Capable Core Node Architecturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic optical burst grooming in OBS networks

Abdallah

Boudriga

2012

2012 14th International Conference on Transparent Optical Networks (ICTON)

View full text Add to dashboard Cite

show abstract

“…The network uses the OLS switch architecture that we have proposed and discussed in [2]. The switches are interconnected with DWDM links.…”

Section: Ols Core Node and Network Architecturesmentioning

confidence: 99%

A Real-Time Scheme for Planning and Dimensioning of OLS Networks

Khlifi

Boudriga

2007

2007 IEEE International Conference on Signal Processing and Communications

View full text Add to dashboard Cite

Optical Label Switching (OLS) has been proposed as a promising technology for providing resource provisioning and quality of service support. Dimensioning and optimization is a major issue affecting OLS network engineering, since the switch design and data transmission costs are basic criteria in OLS networking. In this paper, we introduce a novel technique for resource dimensioning and use optimization based on dynamic real-time management of the network resources and traffic requirements. The technique handles signaling tasks and contention resolution. We develop a scalable dimensioning and optimization problem approach based on buffering and transmission capabilities and formalize it using traffic requirements. Finally, simulation activity is performed in order to validate the proposed approach.

show abstract

“…Some proposed output buffer switches with FDL buffers [6,7,11,14]. Some proposed shared buffer switches with FDL buffers [12,19,20,28,29], and some proposed hybrid buffer switches with FDL buffers [9,8]. They mainly focus on analyzing and reducing packet loss due to buffer overflow.…”

Section: Introductionmentioning

confidence: 98%

“…For all-optical packet switching, optical buffering implemented by fiber delay lines (FDLs) [2,[6][7][8][9][11][12][13][14]17,19,20,[24][25][26]28,29] is a solution to the output contention problem. Optical packets can be recirculated in FDLs to avoid output contention.…”

Section: Introductionmentioning

confidence: 99%

A latency-aware scheduling algorithm for all-optical packet switching networks with FDL buffers

Chou

Lin

2010

Photon Netw Commun

View full text Add to dashboard Cite

Optical buffers implemented by fiber delay lines (FDLs) have a volatile nature due to signal loss and noise accumulation. Packets suffer from excessive recirculation through FDLs, and they may be dropped eventually in their routing paths. Because of this, packet scheduling becomes more difficult in FDL buffers than in RAM buffers, and requires additional design considerations for reducing packet loss. We propose a latency-aware scheduling scheme and an analytical model for all-optical packet switching networks with FDL buffers. The latency-aware scheduling scheme is intended to minimize the packet loss rate of the networks by ranking packets in the optimal balance between latency and residual distance. The analytical model is based on non-homogeneous Markovian analysis to study the effect of the proposed scheduling scheme on packet loss rate and average delay. Furthermore, our numerical results show how various network parameters affect the optimal balance. We demonstrate quantitatively how to achieve the proper balance between latency and residual distance so that the network performance can be improved significantly. For instance, we find that under a given latency limit and light traffic load our scheduling scheme achieves a packet loss rate 71% lower than a scheduling scheme that ranks packets simply based on latency

show abstract

A novel node architecture for optical networks: Modeling, analysis and performance evaluation

Cited by 19 publications

References 10 publications

Dynamic optical burst grooming in OBS networks

Dynamic optical burst grooming in OBS networks

A Real-Time Scheme for Planning and Dimensioning of OLS Networks

A latency-aware scheduling algorithm for all-optical packet switching networks with FDL buffers

Contact Info

Product

Resources

About