| 融合优先级差异的应用层组播算法分析与实现 |
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| 引用本文： | 陈仁,吴克寿,崔建峰,谢小竹.融合优先级差异的应用层组播算法分析与实现[J].厦门理工学院学报,2013(2):44-47. |
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| 作者姓名： | 陈仁 吴克寿 崔建峰 谢小竹 |
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| 作者单位： | 厦门理工学院计算机与信息工程学院,福建厦门361024 |
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| 基金项目： | 厦门理工学院科研基金项目（XKJJ201102）; 福建省自然科学基金项目（2011J05160）; 福建省教育厅科技计划项目（JB12185） |
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| 摘 要： | 提出一种优先级差异性启发式控制机制（PDHM）,设置不同的优先级差异性阈值（Dp）并获取最佳优先级差异性区间（bPDI）,在bPDI内通过调整阈值Dp以有效地控制组播生成树的构建.实验结果表明,在对优先级没有严格要求的基于优先级的分布式交互式应用（pDIAs）中,PDHM在保证系统性能的情况下,比应用预测和量化的优先级有向最小生成树算法（PQPST）更简便.
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| 关 键 词： | 应用层组播 分布式交互式应用 优先级 阈值 |
Analysis and Implementation of a Priority-Discrepancy Application Level Multicast Algorithm |
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| CHEN Ren,WU Ke-shou,CUI Jian-feng,XIE Xiao-zhu.Analysis and Implementation of a Priority-Discrepancy Application Level Multicast Algorithm[J].Journal of Xiamen University of Technology,2013(2):44-47. |
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| Authors: | CHEN Ren WU Ke-shou CUI Jian-feng XIE Xiao-zhu |
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| Institution: | ( School of Computer ＆ Information Engineering, Xiamen University of Technology, Xiamen 361024, China) |
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| Abstract: | This paper proposes Priority Discrepancy Heuristic Mechanism （PDHM）, which sets different thresholds of priority discrepancy （Dp） and gets the best heuristic Priority Discrepancy Interval （bPDI）. Moreover, PDHM can efficiently control multicast distribution tree construction by adjusting the Dp within the bPDI. According to the simulation results, the PDHM guarantees system performance and a simpler operation than PQPST in the pDIAs when priority is not sternly required. |
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| Keywords: | application level multicast distribution interactive applications priority discrepancy |
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