A NOVEL HYBRID SCHEME FOR CONTENTION MINIMIZATION IN OPTICAL BURST SWITCHED NETWORK
In Optical Burst Switched (OBS) Networks, data is transported in a bufferless network and hence there is fair amount of possibility of contention among the data bursts. This occurs when multiple bursts contend for the same link. The existing reactive contention resolution schemes attempt to address...
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ICT Academy of Tamil Nadu
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doaj-31f70482b089424186e5400142054e1d2020-11-24T21:32:45ZengICT Academy of Tamil NaduICTACT Journal on Communication Technology0976-00912229-69482015-12-016411931199A NOVEL HYBRID SCHEME FOR CONTENTION MINIMIZATION IN OPTICAL BURST SWITCHED NETWORKDilip H. Patel0Kiritkumar Bhatt1Jaymin Bhalani2LDRP Institute of Technology and Research, IndiaSardar Vallabhbhai Patel Institute of Technology, IndiaBabariya Institute of Technology, IndiaIn Optical Burst Switched (OBS) Networks, data is transported in a bufferless network and hence there is fair amount of possibility of contention among the data bursts. This occurs when multiple bursts contend for the same link. The existing reactive contention resolution schemes attempt to address issue of contention without making any efforts to minimize the occurrences of contention in the network. Also, the existing proactive contention minimization schemes fail to provide improvement in contention loss at a very high load. Therefore, we are presenting new scheme for reducing the occurrence of contention in OBS network and it is known as Dynamic Hybrid Cluster and Deflection Feedback (DHCF) scheme. In proposed DHCF scheme entire OBS network is partitioned into many small clusters. In each cluster, one node acts as cluster head for gathering the information of resources in the network. The contention is minimized using clustering approach and it can be further improved with the help of deflection feedback mechanism. A performance metrics is considered to evaluate merits of the proposed DHCF scheme and its effects on overall network performance. Also, the comparison of the performance of the DHCF scheme with limited hybrid deflection and retransmission (LHDR) scheme and dynamic hybrid retransmission in deflection routing (DHRD) scheme is made. The simulation results show that the proposed scheme gives improvement in Burst Loss Probability (BLP) in the range of 31% to 38% and delay improvement in the range of 64% to 74% on vBSN network. The vBSN is network topology.http://ictactjournals.in/paper/IJCT_V6_I4_pp_5_1193_1199.pdfOptical Burst SwitchingContention ResolutionBurst Loss Probability (BLP) |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Dilip H. Patel Kiritkumar Bhatt Jaymin Bhalani |
spellingShingle |
Dilip H. Patel Kiritkumar Bhatt Jaymin Bhalani A NOVEL HYBRID SCHEME FOR CONTENTION MINIMIZATION IN OPTICAL BURST SWITCHED NETWORK ICTACT Journal on Communication Technology Optical Burst Switching Contention Resolution Burst Loss Probability (BLP) |
author_facet |
Dilip H. Patel Kiritkumar Bhatt Jaymin Bhalani |
author_sort |
Dilip H. Patel |
title |
A NOVEL HYBRID SCHEME FOR CONTENTION MINIMIZATION IN OPTICAL BURST SWITCHED NETWORK |
title_short |
A NOVEL HYBRID SCHEME FOR CONTENTION MINIMIZATION IN OPTICAL BURST SWITCHED NETWORK |
title_full |
A NOVEL HYBRID SCHEME FOR CONTENTION MINIMIZATION IN OPTICAL BURST SWITCHED NETWORK |
title_fullStr |
A NOVEL HYBRID SCHEME FOR CONTENTION MINIMIZATION IN OPTICAL BURST SWITCHED NETWORK |
title_full_unstemmed |
A NOVEL HYBRID SCHEME FOR CONTENTION MINIMIZATION IN OPTICAL BURST SWITCHED NETWORK |
title_sort |
novel hybrid scheme for contention minimization in optical burst switched network |
publisher |
ICT Academy of Tamil Nadu |
series |
ICTACT Journal on Communication Technology |
issn |
0976-0091 2229-6948 |
publishDate |
2015-12-01 |
description |
In Optical Burst Switched (OBS) Networks, data is transported in a bufferless network and hence there is fair amount of possibility of contention among the data bursts. This occurs when multiple bursts contend for the same link. The existing reactive contention resolution schemes attempt to address issue of contention without making any efforts to minimize the occurrences of contention in the network. Also, the existing proactive contention minimization schemes fail to provide improvement in contention loss at a very high load. Therefore, we are presenting new scheme for reducing the occurrence of contention in OBS network and it is known as Dynamic Hybrid Cluster and Deflection Feedback (DHCF) scheme. In proposed DHCF scheme entire OBS network is partitioned into many small clusters. In each cluster, one node acts as cluster head for gathering the information of resources in the network. The contention is minimized using clustering approach and it can be further improved with the help of deflection feedback mechanism. A performance metrics is considered to evaluate merits of the proposed DHCF scheme and its effects on overall network performance. Also, the comparison of the performance of the DHCF scheme with limited hybrid deflection and retransmission (LHDR) scheme and dynamic hybrid retransmission in deflection routing (DHRD) scheme is made. The simulation results show that the proposed scheme gives improvement in Burst Loss Probability (BLP) in the range of 31% to 38% and delay improvement in the range of 64% to 74% on vBSN network. The vBSN is network topology. |
topic |
Optical Burst Switching Contention Resolution Burst Loss Probability (BLP) |
url |
http://ictactjournals.in/paper/IJCT_V6_I4_pp_5_1193_1199.pdf |
work_keys_str_mv |
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