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Packet Scheduling for the Proportional Differentiation Model based on Measurement Windows

Many applications that adapt themselves to available resources have lately become popular on the Internet, suggesting that absolute QoS levels are not essential for most applications. The proportional differentiation model (PDM) constitutes currently one of the main proposals for the next generation Internet and adds one more possibility for application adaptation. This paper investigates the PDM, situating it along other existing service proposals and presents the window based waiting-time priority (WBWTP) packet scheduling algorithm, which enables to reach the proportional differentiation model objectives with higher accuracy than the traditional waiting-time priority (WTP) and proportional average delay (PAD) algorithms.