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| Content Provider | ACM Digital Library |
|---|---|
| Author | Zhang, Hui Bennett, Jon C. R. |
| Abstract | Hierarchical Packet Fair Queueing (H-PFQ) algorithms have the potential to simultaneously support guaranteed real-time service, rate-adaptive best-effort, and controlled link-sharing service. In this paper, we design practical H-PFQ algorithms by using one-level Packet Fair Queueing (PFQ) servers as basic building blocks, and develop techniques to analyze delay and fairness properties of the resulted H-PFQ servers. We demonstrate that, in order to provide tight delay bounds in a H-PFQ server, it is essential for the one-level PFQ servers to have small Worst-case Fair Indices (WFI). We propose a new one-level PFQ algorithm called $WF^{2}Q+$ that is the first to have all the following three properties: (a) providing the tightest delay bound among all PFQ algorithms; (b) having the smallest WFI among all PFQ algorithms; and (c) having a relatively low implementation complexity of O(log N). We show that practical H-PFQ algorithms can be implemented by using $WF^{2}Q+$ as the basic building block and prove that the resulting $H-WF^{2}Q+$ algorithms provide similar delay bounds and bandwidth distribution as those provided by a H-GPS server. Simulation experiments are presented to evaluate the proposed algorithm. |
| Starting Page | 143 |
| Ending Page | 156 |
| Page Count | 14 |
| File Format | |
| ISBN | 0897917901 |
| DOI | 10.1145/248156.248170 |
| Language | English |
| Publisher | Association for Computing Machinery (ACM) |
| Publisher Date | 1996-08-28 |
| Publisher Place | New York |
| Access Restriction | Subscribed |
| Content Type | Text |
| Resource Type | Article |
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