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

scholarly journals WDM Network and Multicasting Protocol Strategies

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Pinar Kirci ◽  
Abdul Halim Zaim
Keyword(s):  
Optical Networks ◽  
Wavelength Division Multiplexing ◽  
Multicast Routing ◽  
Wdm Networks ◽  
Just In Time ◽  
Wavelength Division ◽  
Burst Switching ◽  
Internet Users ◽  
Data Transparency ◽  
Optical Burst

Optical technology gains extensive attention and ever increasing improvement because of the huge amount of network traffic caused by the growing number of internet users and their rising demands. However, with wavelength division multiplexing (WDM), it is easier to take the advantage of optical networks and optical burst switching (OBS) and to construct WDM networks with low delay rates and better data transparency these technologies are the best choices. Furthermore, multicasting in WDM is an urgent solution for bandwidth-intensive applications. In the paper, a new multicasting protocol with OBS is proposed. The protocol depends on a leaf initiated structure. The network is composed of source, ingress switches, intermediate switches, edge switches, and client nodes. The performance of the protocol is examined with Just Enough Time (JET) and Just In Time (JIT) reservation protocols. Also, the paper involves most of the recent advances about WDM multicasting in optical networks. WDM multicasting in optical networks is given as three common subtitles: Broadcast and-select networks, wavelength-routed networks, and OBS networks. Also, in the paper, multicast routing protocols are briefly summarized and optical burst switched WDM networks are investigated with the proposed multicast schemes.

The Optical Burst Switching Ring Network using AOTF to Drop Data Burst

2005 ◽  
Vol 26 (6) ◽  
Author(s):  
Zehua Gao ◽  
Yaojun Qiao ◽  
Yuefeng Ji ◽  
Tamio Saito
Keyword(s):  
Optical Burst Switching ◽  
Ring Network ◽  
Burst Switching ◽  
Data Burst ◽  
Optical Burst

A New QoS-based Scheduling Algorithm in Optical Burst Switching WDM Networks

2005 ◽  
Vol 26 (3) ◽  
Author(s):  
Wei Tan ◽  
Zhizhong Zhang ◽  
Du Xu ◽  
Sheng Wang ◽  
Lemin Li
Keyword(s):  
Scheduling Algorithm ◽  
Optical Burst Switching ◽  
Wdm Networks ◽  
Burst Switching ◽  
Optical Burst

Improving the Optical Burst Switching Networks Quality of Service by Ensuring the Fairness among the Network Traffic Types

2015 ◽  
Vol 73 (2) ◽  
Author(s):  
Mohammed Al-Shargabi ◽  
Faisal Saeed ◽  
Zaid Shamsan ◽  
Abdul Samad Ismail ◽  
Sevia M Idrus
Keyword(s):  
Quality Of Service ◽  
Network Traffic ◽  
Optical Burst Switching ◽  
Burst Switching ◽  
Real Time Traffic ◽  
Traffic Loads ◽  
Significant Difference ◽  
Data Burst ◽  
Optical Burst

The Optical burst switching (OBS) networks have been attracting much consideration as a promising approach to build the next generation optical Internet. Aggregating the burst in the OBS networks from the high priority traffic will increase the average of the loss of its packets. However, the ratio of the high priority traffic (e.g. real-time traffic) in the burst is a very important factor for reducing the data loss, and ensuring the fairness between network traffic types. This paper introduces a statistical study based on the significant difference between the traffics to find the fairness ratio for the high priority traffic packets against the low priority traffic packets inside the data burst with various network traffic loads. The results show an improvement in the OBS quality of service (QoS) performance and the high priority traffic packets fairness ratio inside the data burst is 50 to 60%, 30 to 40%, and 10 to 20% for high, normal, and low traffic loads, respectively.

A new scheduling algorithm to provide proportional QoS in optical burst switching networks

2006 ◽  
Vol 23 (5) ◽  
pp. 656-660
Author(s):  
Wei Tan ◽  
Zhizhong Zhang ◽  
Yunhan Luo ◽  
Sheng Wang ◽  
Lemin Li
Keyword(s):  
Scheduling Algorithm ◽  
Optical Burst Switching ◽  
Switching Networks ◽  
Burst Switching ◽  
Optical Burst Switching Networks ◽  
Optical Burst
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