scholarly journals Provision of End-to-End Delay Guarantees in Wavelength-Routed Optical Burst-Switched Networks

2003 ◽  
pp. 85-100 ◽  
Author(s):  
Ignacio de Miguel ◽  
Eugene Kozlovski ◽  
Polina Bayvel
Keyword(s):  
Switched Networks ◽  
End To End Delay ◽  
Delay Guarantees ◽  
End To End ◽  
Optical Burst

scholarly journals Fuzzy-Based Adaptive Hybrid Burst Assembly Technique for Optical Burst Switched Networks

2014 ◽  
Vol 2014 ◽  
pp. 1-10
Author(s):  
Abubakar Muhammad Umaru ◽  
Muhammad Shafie Abd Latiff ◽  
Yahaya Coulibaly
Keyword(s):  
Optical Networks ◽  
Switched Networks ◽  
Assembly Algorithm ◽  
End To End Delay ◽  
All Optical ◽  
Assembly Technique ◽  
End To End ◽  
Burst Assembly ◽  
Fuzzy Adaptive ◽  
Optical Burst

The optical burst switching (OBS) paradigm is perceived as an intermediate switching technology for future all-optical networks. Burst assembly that is the first process in OBS is the focus of this paper. In this paper, an intelligent hybrid burst assembly algorithm that is based on fuzzy logic is proposed. The new algorithm is evaluated against the traditional hybrid burst assembly algorithm and the fuzzy adaptive threshold (FAT) burst assembly algorithm via simulation. Simulation results show that the proposed algorithm outperforms the hybrid and the FAT algorithms in terms of burst end-to-end delay, packet end-to-end delay, and packet loss ratio.

Deterministic end-to-end delay guarantees with rate controlled EDF scheduling

2006 ◽  
Vol 63 (4-5) ◽  
pp. 509-519 ◽  
Author(s):  
Vijay Sivaraman ◽  
Fabio M. Chiussi ◽  
Mario Gerla
Keyword(s):  
End To End Delay ◽  
Delay Guarantees ◽  
Rate Controlled ◽  
End To End

Channel Scheduling Based on Orchestrator Live Node-Wavelength Reservation for Optical Burst Switching Networks

2020 ◽  
Vol 15 (1) ◽  
pp. 34-45
Author(s):  
S. Manisekar ◽  
J. A.V. Selvi
Keyword(s):  
Fuzzy Logic ◽  
Optical Burst Switching ◽  
Packet Transmission ◽  
Burst Switching ◽  
End To End Delay ◽  
The Status ◽  
End To End ◽  
Burst Assembly ◽  
Offset Time ◽  
Optical Burst

Background: Dedicated wavelength utilization and the isolation of control plane from the data plane are the important features in the design of Optical Burst Switching (OBS). The contention in bursts, link congestion and the reservation cause the burst dropping in optical networks. The slotted time and the burst assembly models incorporate the wavelength assignment and the channel reservation schemes to reduce the dropping probability. The reservation of resources prior to burst arrival and the additional delay due to the burst assembly and the offset time are the major issues in the reduction of probability. Besides, the traditional one-to-one packet transmission consumes more time due to a large number of packets handling. Materials and Methods: This paper proposes the novel OBS model that incorporates the three processes such as Open-Flow (OF)-based Orchestrator Live Node (OLN) modeling, fuzzy logic based ranking and the offset time-based reservation (without/with void filling) to overcome the issues in the traditional methods. Initially, the OLN modeling based on OF analysis includes the Flow Information Base (FIB) table for the periodical update of the link information. The fuzzy logic- based ranking of channels followed by OF-OLN predicts the status of the wavelength such as free, used and conversion. Based on the status, the channels are reserved without and with void filling to schedule the bursts effectively. The reservation scheme employs the Offset-Time Burst Assembly algorithm to allow the resource reservation prior to burst arrival. Through these processes, the reuse of wavelength and the reallocation of resources are possible in OBS. Results & Conclusion: The controlling of maximum burst transfer delay by the OTBA efficiently reduces the end-to-end delay for data traffic. The comparative analysis between the proposed OLN-WR with the existing Hybrid Burst Assembly (HBA), Fuzzy-based Adaptive Threshold (FAT) and Fuzzy-based Adaptive Hybrid Burst Assembly (FAHBA) in terms of end-to-end delay and transmitted amount of bursts assures the applicability of OLN-WR in scheduling and communication activities in OBS networks.

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