High Performance DiffServ Mechanism for Routers and Switches: Packet Arrival Rate Based Queue Management for Class Based Scheduling

Abstract

Abstract. This paper introduces a technique for applying packet arrival rate based queue management to class based scheduling algorithms. This enables a DiffServ architecture with very low packet latency, loss, and high link utilisation. Simulation results demonstrate that the proposed technique outperforms the current weighted random early drop (WRED) and weighted fair queue (WFQ) architecture.

Implementation and experimental evaluation of a simple packet rate estimator

“…In [6], an adaptive rate scheduling based on the estimation and prediction of packet arrival rate has been proposed for minimizing QoS degradations in next generation CDMA wireless mobile systems. In [7], a queue management technique based on packet arrival rate was introduced for routers and switches to provide end-to-end high performance DiffServ QoS. In [8], the packet arrival rate of incoming traffic is utilized in a dynamic weighted fair queueing scheduler of routers.…”

On the performance of a simple packet rate estimator

“…It is worth noting that, the packet arrival rate estimators reported in [5][6][7][8][9] employ typically an exponentially weighted moving average, described and named later in the paper as the static EWMA as it has a constant weight. In this paper, we describe and study a total of four different packet arrival rate estimators, including the static EWMA.…”