Quality of service-based multi-domain routing under multiple quality of service metrics

Yiltaş, Derya; Perros, Harry G.

doi:10.1049/iet-com.2010.0144

Cited by 9 publications

(5 citation statements)

References 11 publications

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“…In the literature of the traditional networks, there are numerous studies and methods concerning multi-metric structures for improving the quality of service during the routing processes, as can be seen in [Yiltas and Perros 2011], [Yiltas-Kaplan 2015]. There are also many studies about general decision-making processes with multi-metric evaluations.…”

Section: Normalization Processmentioning

confidence: 99%

Traffic Optimization with Software-Defined Network Controller on a New User Interface

Yiltas-Kaplan

2022

jucs

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Software-defined networking (SDN) has emerged as a solution to the cumbersome structures of classical computer networks. It separates control and data planes to give independence to devices with respect to either traffic routing or network management. The two isolated planes communicate with each other via the help of software modules, which are located in an SDN controller, such as Floodlight, NOX, or Ryu. In this study, Floodlight is used and an SDN topology with 20 switches is constructed with Python code in Mininet. All algorithms have been coded with Java. The default routing algorithm in Floodlight is Dijkstra’s algorithm. Four different network optimization algorithms, namely Bellman-Ford, Ford-Fulkerson, Auction, and Dual Ascent algorithms, are utilized in ordinary network routing instead of Dijkstra’s algorithm. None of these four algorithms were used in SDN before and network implementations using Ford-Fulkerson, Auction, or Dual Ascent algorithms were scarce in the literature. The results are analyzed with multiple types of normalization on a new user interface communicating with Floodlight part via HTTP requests. There has not been a user interface that performs the same operations in Floodlight. In the future, this study may possibly be improved with considering normalization processes based on various proportions among the metric values and accounting the computational time of the algorithms.

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Section: Normalization Processmentioning

confidence: 99%

Traffic Optimization with Software-Defined Network Controller on a New User Interface

Yiltas-Kaplan

2022

jucs

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“…It is known that the problem of finding an optimal path with multiple additive constraints is NP-Hard [3,27,28]. In order to reduce the time complexity, some approaches have defined a single aggregated metric calculated from multiple metrics [29,30]. Although they reduce the search space the same as well-known shortest routing algorithms, this might not satisfy the requirement of applications because the single aggregated value may not guarantee the constraint of some specific metrics.…”

Section: Related Workmentioning

confidence: 99%

An Efficient Local Repair‐Based Multi‐Constrained Routing for Congestion Control in Wireless Mesh Networks

Shin

Lee

2018

Wireless Communications and Mobile Computing

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Multi-constrained routing is a key driver to support quality-of-service (QoS) for real-time multimedia applications in wireless mesh networks (WMNs). Due to the difficulty of applying strict admission control into a public WMN, it is inevitable to accommodate multiple application flows with different QoS requirements exceeding the capacity of a certain link shared by multiple flows. However, existing multi-constrained routing protocols under such an environment find the QoS degradation based on end-to-end path quality probing and trigger flooding-based route discovery from a scratch for resolving the QoS degradation, which incurs a longer recovery time and much routing overhead. In this paper, we propose a novel multi-constrained routing protocol for WMNs that finds problematic links that may affect QoS degradation to end-to-end paths and replaces them with a detour path using a local repair principle. We model congestion threshold estimation for finding problematic links and design algorithms for quickly finding detour paths and selecting an optimal path by minimizing the negative effect on existing flows nearby the detour path. Simulation results show that the proposed routing protocol achieves up to 19.6% more goodput of live video streaming applications with up to 33% reduced routing overhead compared with an existing work.

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“…After the user specifies the required density as well as the entering and exiting lane of each traffic flow, the implemented Dijkstra’s algorithm [81] manages the idealized routing of every single traffic flow.…”

Section: Proposed Model Descriptionmentioning

confidence: 99%

A Harmonized Perspective on Transportation Management in Smart Cities: The Novel IoT-Driven Environment for Road Traffic Modeling

Mašek

Masek

Frantík

et al. 2016

Sensors

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The unprecedented growth of today’s cities together with increased population mobility are fueling the avalanche in the numbers of vehicles on the roads. This development led to the new challenges for the traffic management, including the mitigation of road congestion, accidents, and air pollution. Over the last decade, researchers have been focusing their efforts on leveraging the recent advances in sensing, communications, and dynamic adaptive technologies to prepare the deployed road traffic management systems (TMS) for resolving these important challenges in future smart cities. However, the existing solutions may still be insufficient to construct a reliable and secure TMS that is capable of handling the anticipated influx of the population and vehicles in urban areas. Along these lines, this work systematically outlines a perspective on a novel modular environment for traffic modeling, which allows to recreate the examined road networks in their full resemblance. Our developed solution is targeted to incorporate the progress in the Internet of Things (IoT) technologies, where low-power, embedded devices integrate as part of a next-generation TMS. To mimic the real traffic conditions, we recreated and evaluated a practical traffic scenario built after a complex road intersection within a large European city.

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Quality of service-based multi-domain routing under multiple quality of service metrics

Cited by 9 publications

References 11 publications

Traffic Optimization with Software-Defined Network Controller on a New User Interface

Traffic Optimization with Software-Defined Network Controller on a New User Interface

An Efficient Local Repair‐Based Multi‐Constrained Routing for Congestion Control in Wireless Mesh Networks

A Harmonized Perspective on Transportation Management in Smart Cities: The Novel IoT-Driven Environment for Road Traffic Modeling

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