A Restricted Intermediate Node Buffering-Based Contention Control Scheme for OBS Networks

Nleya, Bakhe; Khumalo, Philani; Mutsvangwa, Andrew

doi:10.1109/icabcd.2019.8851001

Cited by 1 publication

(2 citation statements)

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“…Fairness in OBS networks can be considered at the ingress node, the core node, or both the ingress and core nodes (Figure 2). Studies on the ingress node focused on two aspects: delay fairness (Sui et al, 2006;Vo et al, 2018;Wang et al 2019) and throughput fairness (Liu et al, 2005;Orawiwattanakul et al, 2009, while distance fairness (Hsu & Yang, 2008;Sarwar et al, 2008;Nleya et al, 2019;Nassar & Tachibana, 2020) is considered at the core node. A detailed review of these three types of fairness is presented in the following paragraphs.…”

Section: Related Workmentioning

confidence: 99%

“…Recently, distance fairness was addressed by Nleya et al (2019), where a scheme called the restricted intermediate node bufferingbased routing and wavelength assignment was proposed to select between the primary and deflection paths when a contention occurred. Distance fairness was then used as a performance metric to select the best route.…”

Section: Distance Fairnessmentioning

confidence: 99%

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A Combined Delay-Throughput Fairness Model for Optical Burst Switched Networks

Lê

2023

Journal of Information and Communication Technology

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Fairness is an important feature of communication networks. It is the distribution, allocation, and provision of approximately equal orequal performance parameters, such as throughput, bandwidth, loss rate, and delay. In an optical burst switched (OBS) network, fairness is considered in three aspects: distance, throughput, and delay. Studies on these three types of fairness have been conducted; however, they have usually been considered in isolation. These fairness types should be considered together to improve the communication performance of the entire OBS network. This paper proposes a combined delay-throughput fairness model, where burst assembly and bandwidth allocation are improved to achieve both delay fairness and throughput fairness at ingress OBS nodes. The delay fairness and throughput fairness indices are recommended as metrics for adjusting the assembly queue length and allocated bandwidth for priority flows. The simulation results showed that delay and throughput fairness could be achieved simultaneously, improving the overall communication performance of the entire OBS network.

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