Fuzzy enabled congestion control for Differentiated Services Networks

The requirement of services at different levels of Quality of Service has necessitated the classification of them. The Differentiated Services architecture has been proposed for providing different levels of services and has recently received wide attention. Packets are classified into a class of service according to its Service Level Agreement and treated differently by its class. Hence policy is setup about the kind of actions to be taken such as classifying, shaping, dropping and marking on the packets requiring different level of services. We propose a Fuzzy Enabled Differentiated Services at three precedence levels in the link queue to decide the packet drop. The performance of Differentiated Services with three precedence levels (DS3) is compared with the proposed method. It is found that the number of packets dropped has been reduced in the proposed method compared to the existing Differentiated Services with three precedence levels and hence throughput has been shown to be increased.

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