Comparative Simulation of Scheduling Mechanism in Packet Switching Network

Miaji, Yaser; Hassan, Suhaidi

doi:10.1109/netapps.2010.54

Cited by 8 publications

(7 citation statements)

References 13 publications

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“…The basic approach to transmitting a packet in every network is FIFO. In queue, the first packet is served first in an exact time slot, in spite of any prioritization, security, or even fairness [6]. Therefore, it is easy to simulate.…”

Section: Description Of Fifomentioning

confidence: 99%

“…Therefore, it is easy to simulate. Nevertheless, it fails to arrive at all other priority customize excluding difficulty FIFO suffers from the "HOL problem that refers to that if the first packet in the queue is blocked for any reason, the remaining is blocked although the link is idle" [6].…”

Section: Description Of Fifomentioning

confidence: 99%

“…PQ is constructed to deal with the publication of FIFO that does not present any priority to all data traffic or some class. Generally, "PQ assures the best ever service of higher-priority data at each point where it is used" [6]. It presents firm priority to the traffic that is necessary.…”

Section: Priority Queuing (Pq)mentioning

confidence: 99%

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Evaluation Packet Priority Mechanisms over 5G Mobile Network

Dighriri¹

2022

JNACS

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In wireless networks, enhancing the Quality of Service (QoS) is main purpose of mobile providers. In real-time applications like video monitoring, Mobile networks transport various forms of packet traffic. These applications should have the gain of QoS acclimation. In order to guarantee QoS of mobile networks several Packet Priority Mechanisms (PPMs) are employed at the router. IoT devices are expected to rise considerably over mobile networks 5G a consequence of increasing the capacity and high data rates. These mobile networks face some issues in overload and congestion in Radio Access Network (RAN) because of the massive IoT device packet traffic requiring various levels of QoS requirements. In this article, the method PPMs namely, First-In-First-Out (FIFO), Priority Queuing (PQ), and Weighted Fair Queuing (WFQ) in 5G and 4G networks taking into consideration QoS requirements in IoT and smart systems scenarios are investigated and compared. The three evaluated PPMs were designed over 4G and 5G mobile networks in terms of the user's suitability to enhance the priority order. The results of the OPNET simulation show that the performance evaluation allowed us to draw conclusions on the performance of the three-PPMs and point out the strengths and weaknesses.

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Section: Description Of Fifomentioning

confidence: 99%

Section: Description Of Fifomentioning

confidence: 99%

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Evaluation Packet Priority Mechanisms over 5G Mobile Network

Dighriri¹

2022

JNACS

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“…However, it fails to achieve all other scheduling properties except complexity. FIFO suffers from head of line (HOL) issue, which means that if the first packet in the queue is blocked for any reason, the rest is blocked even though the link is idle [1].…”

Section: A First-in-first-out (Fifo)mentioning

confidence: 99%

“…Priority Queuing is developed to overcome the problem of FIFO, which does not provide any priority to any class or any data traffic. PQ generally ensures the fastest service of high priority data at every point where it is used [1]. It gives strict priority to the traffic, which is very important.…”

Section: B Priority Queuing (Pq)mentioning

confidence: 99%

Fairness Evaluation of a DSCP Based SchedulingAlgorithm for Real-Time Traffic in Differentiated ServiceNetworks

Mukherjee¹

2013

IJIEE

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It is a very vital factor to allocate the resources for improving the QoS (Quality of service) for any network carrying various types of traffic. Real-time applications, such as video conferences, are in the most important to get the benefit of QoS adaptation. Several scheduling disciplines are employed at the router to guarantee the QoS of the network. Each scheduling discipline has its pros and cons. DiffServ (Differentiated Services) is an IP based QoS support framework that differentiates between different classes of traffic. The function of the core router of the network is to forward packets as per the per-hop behavior associated with the DSCP (Differentiated services code point) value. Weighted Fair Queuing scheduling discipline when merged with DSCP for traffic classification, maintain fairness of Qos. The common scheduling mechanisms are first-in-first-out (FIFO), priority queuing (PQ), and weighted fair queuing (WFQ). In this paper performance of various scheduling disciplines for real-time traffic like video was simulated using OPNET IT Guru, and it was concluded that, WFQ when merged with DSCP is a better method of queuing.

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