Abstract
The requirement for guaranteed Quality of Service (QoS) have become very essential since there are numerous network base application is available such as video conferencing, data streaming, data transfer and many more. This has led to the multi-class switch architecture to cater for the needs for different QoS requirements. The introduction of threshold in multi-class switch to solve the starvation problems in loss sensitive class has increased the mean delay for delay sensitive class. In this research, a new scheduling architecture is introduced to improve mean delay in delay sensitive class when the threshold is active. The proposed architecture has been simulated under uniform and non-uniform traffic to show performance of the switch in terms of mean delay. The results show that the proposed architecture has achieved better performance as compared to Weighted Fair Queueing (WFQ) and Priority Queue (PQ).
Highlights
In the current communication network, the desire of having multiple applications on a single traffic stream has become essentials
The results show that the proposed architecture has achieved better performance as compared to Weighted Fair Queueing (WFQ) and Priority Queue (PQ)
We proposed an efficient scheduling technique to control the flow of the cells for both loss sensitive class and delay sensitive class in the multi-class
Summary
In the current communication network, the desire of having multiple applications on a single traffic stream has become essentials. The use of priority provides the means to give different classes of service a different type of traffic [4] This needs an efficient scheduling algorithm to handle the flows of multi-class traffic packets. QoS parameters, such as service rate or delay This technique is not suitable under high-traffic load because of the fixed weight that is assigned to the queue and introduces starvation problems to loss sensitive class. Despite improving the performance of loss sensitive class, designing a high speed packet multi-class switching with the threshold will introduce problems such as the drop of QoS performance for delay sensitive class whenever the threshold is active. This scheduler is able to detect and match the idle output port for delay sensitive class even in the present of the active threshold in loss sensitive class within the same input port
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