Scheduler Algorithm for Multi-Class Switch with Priority Threshold  

作　　者：Abdul Aziz Abdul Rahman Kamaruzzaman Seman Kamarudin Saadan Ahmad Kamsani Samingan Azreen Azman 

机构地区：[1]Faculty of Computer Science & IT, Universiti Putra Malaysia (UPM), Selangor, Malaysia [2]Faculty of Science & Technology, Universiti Sains Islam Malaysia (USIM), Negeri Sembilan, Malaysia [3]Next Generation Access, Telekom Research & Development, Selangor, Malaysia

出　　处：《International Journal of Communications, Network and System Sciences》2012年第6期313-320,共8页通讯、网络与系统学国际期刊（英文）

摘　　要：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).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).

关 键 词：SCHEDULER PRIORITY Thresholds MULTI-CLASS Quality of Service (QOS) 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]