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

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>

scholarly journals Comparing Optical Packet Switching And Optical Burst Switching

1970 ◽  
Vol 6 (2) ◽  
pp. 22-32 ◽  
Author(s):  
Sajjad Waheed
Keyword(s):  
Packet Switching ◽  
Data Transfer ◽  
Optical Burst Switching ◽  
Telecommunication Networks ◽  
Optical Packet Switching ◽  
Data Traffic ◽  
Burst Switching ◽  
Bulk Volume ◽  
Near Future ◽  
Optical Burst

The switching is an important part of the telecommunication networks over the years for transferring and handling voice and data through the traditional switching nodes existing in the telecommunication networks. Various developments were seen in the recent years which resulted in increasing data transfer capabilities of the transmission networks all over the world, however the switching speed and techniques are still remained unchanged in most of the cases that neither match the data transfer capacities nor the expanding demand of the networks in the near future. Some switching technologies are still in the developing stage, of them two are more obvious: Optical Packet Switching (OPS) and Optical Burst Switching (OBS). In this paper, I tried to compare different paradigm of these two main developments, keeping in mind that the OPS would see rapid development in the near future than the OBS, though OBS would the ultimate solution of switching for the bulk volume of telephone and data traffic Keywords: Optical Packet Switching; Optical Burst Switching; Bulk Volume; Data Traffic; Wavedivision Multiplexing DOI: http://dx.doi.org/10.3329/diujst.v6i2.9342 DIUJST 2011; 6(2): 22-32

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.

QKD-Based Secured Burst Integrity Design for Optical Burst Switched Networks

2016 ◽  
Vol 37 (1) ◽  
Author(s):  
A. M. Balamurugan ◽  
A. Sivasubramanian ◽  
B. Parvathavarthini
Keyword(s):  
Optical Burst Switching ◽  
Optical Data ◽  
Circuit Switching ◽  
Avalanche Effect ◽  
Switched Networks ◽  
Burst Switching ◽  
Security Issues ◽  
Viable Solution ◽  
Secure Hash Algorithm ◽  
Optical Burst

AbstractThe field of optical transmission has undergone numerous advancements and is still being researched mainly due to the fact that optical data transmission can be done at enormous speeds. It is quite evident that people prefer optical communication when it comes to large amount of data involving its transmission. The concept of switching in networks has matured enormously with several researches, architecture to implement and methods starting with Optical circuit switching to Optical Burst Switching. Optical burst switching is regarded as viable solution for switching bursts over networks but has several security vulnerabilities. However, this work exploited the security issues associated with Optical Burst Switching with respect to integrity of burst. This proposed Quantum Key based Secure Hash Algorithm (QKBSHA-512) with enhanced compression function design provides better avalanche effect over the conventional integrity algorithms.

Sign in / Sign up

Export Citation Format

Share Document