Networking

Adaptive Early Packet Discarding Policy Based on Two Traffic Classes

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Executive Summary

Unlike the best effort service provided by the internet today, next-generation wireless networks will support real-time applications. This paper proposes an Adaptive Early Packet Discard (AEPD) policy to improve the performance of the real time TCP traffic over ATM networks and avoid the fragmentation problem. Three main aspects are incorporated in the proposed policy. First, providing Quality-of-Service (QoS) guaranteed for real-time applications by implementing a priority scheduling. Second, resolving the partially corrupted packets problem by differentiating the buffered cells of one packet from another. Third, adapting a threshold dynamically using Fuzzy logic based on the traffic behavior to maintain a high throughput under a variety of load conditions.

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