Optical burst switching with burst access mode passive optical networks

2007 ◽  
Author(s):  
C. Y. Li ◽  
P. K. A. Wai ◽  
Victor O. K. Li
Keyword(s):  
Optical Networks ◽  
Optical Burst Switching ◽  
Passive Optical Networks ◽  
Burst Switching ◽  
Access Mode ◽  
Optical Burst

scholarly journals Best Fit Void Filling Segmentation Based Algorithm in Optical Burst Switching Networks

2016 ◽  
Vol 1 ◽  
pp. 1
Author(s):  
A. K. Rauniyar ◽  
A. S. Mandloi
Keyword(s):  
Optical Networks ◽  
Wavelength Division Multiplexing ◽  
Scheduling Algorithm ◽  
Optical Burst Switching ◽  
Wdm Optical Networks ◽  
Switched Networks ◽  
Burst Switching ◽  
College Of Engineering ◽  
Data Burst ◽  
Optical Burst

<p>Optical Burst Switching (OBS) is considered to be a promising paradigm for bearing IP traffic in Wavelength Division Multiplexing (WDM) optical networks.  Scheduling of data burst in data channels in an optimal way is one of a key problem in Optical Burst Switched networks. The main concerns in this paper is to schedule the incoming bursts in proper data channel such that more burst can be scheduled so burst loss will be less. There are different algorithms exists to schedule data burst on data channels. Non-preemptive Delay-First Minimum Overlap Channel with Void Filling (NP-DFMOC-VF) and Non-preemptive Segment-First Minimum Overlap Channel with Void Filling (NP-SFMOC-VF) are best among other existing segmentation based void filling algorithms. Though it gives less burst loss but not existing the channel utilization efficiently. In this paper we propose a new approach, which will give less burst loss and also utilize existing channels in efficient way. Also analyze the performance of this proposed scheduling algorithm and compare it with the existing void filling algorithms. It is shown that the proposed algorithm gives some better performances compared to the existing algorithms.</p><p><em>Journal of Advanced College of Engineering and Management, Vol.1, 2015,</em> pp. 1-10</p><p> </p>

Performance Analysis Of Wdm Mesh Hierarchical Time Sliced Optical Burst Switched Networks

2012 ◽  
Author(s):  
C. Yahaya ◽  
A. L. Muhammad Shafie ◽  
M. Abu Bakar ◽  
E. Hassan
Keyword(s):  
Optical Networks ◽  
Optical Burst Switching ◽  
Loss Probability ◽  
Bandwidth Sharing ◽  
Switched Networks ◽  
Burst Switching ◽  
Delay Sensitive ◽  
Simulation Results ◽  
Near Future ◽  
Optical Burst

Although Optical Burst Switching (OBS) is seen as the favored switching technology for near–future all–optical networks, this technology still suffers from high burst drops probability as a result of contention at the buffer–less core node. Many variants of OBS have been proposed to address this issue. In this paper, the performance of a newly proposed OBS variant known as Hierarchical Time Sliced OBS (HiTSOBS) is studied. The evaluation aims at comparing the performance of HiTSOBS, in terms of burst loss probability and delay for different bandwidths in different topologies. Simulation results demonstrate that larger topologies experience higher loss and higher delay. Moreover, the simulation results show that our proposed bandwidth sharing model is good for delay sensitive applications especially at lower and medium load. Key words: Optical burst switching (OBS); hierarchical time sliced optical burst switching burst loss (HiTSOBS);, contention; burst loss probability (BLP) time slot

A Review Burst Assembly Techniques in Optical Burst Switching (OBS)

2015 ◽  
Vol 73 (2) ◽  
Author(s):  
Abdulsalam A. Yayah ◽  
Abdul Samad Ismail ◽  
Yahaya Coulbaly
Keyword(s):  
Optical Networks ◽  
Optical Burst Switching ◽  
Continuous Growth ◽  
Burst Switching ◽  
Edge Node ◽  
Internet Users ◽  
All Optical ◽  
Burst Assembly ◽  
Switching Method ◽  
Optical Burst

Optical Burst Switching (OBS) is perceived as the most favorable switching method for the next generation all optical networks to support the growth of the number of Internet users and to satisfy bandwidth demands for greedy-bandwidth applications which are in continuous growth. OBS consists of an edge node and a core node. The edge node is responsible for burst assembly which is the first process in an OBS network. Currently, there is only one review paper for burst assembly; the paper is limited in number of techniques reviewed. In this paper, we have undertaken a comprehensive review of burst assembly techniques proposed for OBS where techniques are reviewed by category. The aim is to identify strengths and weaknesses of these techniques. The analysis of the paper will assist researchers in finding problems; thus, a significant amount of time will be saved which can be used in developing appropriate solutions for OBS networks.

Optical Burst Switching

2008 ◽  
pp. 375-382
Author(s):  
Kyriakos Vlachos
Keyword(s):  
Optical Networks ◽  
High Speed ◽  
Random Access ◽  
Optical Burst Switching ◽  
Circuit Switching ◽  
Burst Switching ◽  
Optical Circuit ◽  
All Optical ◽  
Store And Forward ◽  
Optical Burst

Switching in core optical networks is currently being performed using high-speed electronic or all-optical circuit switches. Switching with high-speed electronics requires optical-to-electronic (O/E) conversion of the data stream, making the switch a potential bottleneck of the network: any effort (including parallelization) for electronics to approach the optical speeds seems to be already reaching its practical limits. Furthermore, the store-and-forward approach of packet-switching does not seem suitable for all-optical implementation due to the lack of practical optical Random-Access-Memories to buffer and resolve contentions. Circuit switching on the other hand, involves a pre-transmission delay for call setup and requires the aggregation of microflows into circuits, sacrificing the granularity and the control over individual flows, and is inefficient for bursty traffic. Optical burst switching (OBS) has been proposed by Qiao, C., ?[1] to combine the advantages of both packet and circuit switching and is considered a promising technology for the next generation optical internet.

Fallacious Node Algorithm for Performance Enhancement in Optical-Burst-Switching Networks

2019 ◽  
Vol 40 (3) ◽  
pp. 239-245
Author(s):  
Hardeep Singh Saini ◽  
Amit Wason
Keyword(s):  
Optical Networks ◽  
Performance Enhancement ◽  
Blocking Probability ◽  
Optical Network ◽  
Optical Burst Switching ◽  
Observational Analysis ◽  
Burst Switching ◽  
Optical Burst Switching Networks ◽  
Key Features ◽  
Optical Burst

Abstract In this paper, fallacious node algorithm is formulated for performance enhancement of an optical-burst-switching (OBS) network. With the procedural and observational analysis, we have demonstrated that the blocking probability is extremely unnoticeable, during a call establishment, while collectively discarding the faulty nodes from the selected paths. There may be distinguishing values of blocking probability because of random value of congestion on each path. The blocking probability is restrained so as not to be more than 10 % on several values on traffic and congestion. The blocking probability diminishes and becomes imperceptible with the incorporation of fallacious node algorithm and subsequently the performance of optical network is highly aggrandized. Thus the fallacious node algorithm manifests incredible prospects for optical networks as the key features such as the accessibility; sustainability and reliability of the network are highly appreciated and upgraded.

SIP-enabled Optical Burst Switching architectures and protocols for application-aware optical networks

2008 ◽  
Vol 52 (10) ◽  
pp. 2065-2076 ◽  
Author(s):  
Georgios Zervas ◽  
Yixuan Qin ◽  
Reza Nejabati ◽  
Dimitra Simeonidou ◽  
Franco Callegati ◽  
...  
Keyword(s):  
Optical Networks ◽  
Optical Burst Switching ◽  
Burst Switching ◽  
Application Aware ◽  
Optical Burst

scholarly journals The optical properties of different materials used for thermo-optical switches

2021 ◽  
Vol 72 (3) ◽  
pp. 184-191
Author(s):  
Michaela Holá ◽  
Martin Králik ◽  
Jarmila Müllerová ◽  
L’ubomír Scholtz
Keyword(s):  
Optical Properties ◽  
Optical Networks ◽  
Optical Switching ◽  
Optical Burst Switching ◽  
Optical Switches ◽  
Switching Network ◽  
Switching Networks ◽  
Burst Switching ◽  
Optical Burst Switching Networks ◽  
Optical Burst

Abstract With growing demands of internet protocol services for transmission capacity and speed, the solution for future high speed optical networks is optical burst switching that is a technology for transmitting large amounts of data bursts through a transparent optical switching network the optical switches in optical burst switching networks play important role in the resource reservation and are very important to ensure reliability and flexibility of the network. This paper is focused on the very important components of Optical Burst Switching networks, ieo ptical switches, specifically thermo-optical switches. In this paper are presented the simulation analysis of performance evaluation of thermo-optical switches executed in the model of Optical Burst Switching network and simulation study of investigation of influence of roughness and layer thickness on the optical properties (spectral reflectance, transmittance) of selected materials (SiO2, Ta2O5, Al2O3) for thermooptical switches.

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