| 并行下载最优机制 |
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| 引用本文： | 王正,罗万明,阎保平.并行下载最优机制[J].软件学报,2009,20(8):2255-2268. |
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| 作者姓名： | 王正 罗万明 阎保平 |
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| 作者单位： | 1. 中国科学院,计算机网络信息中心,北京,100190;中国科学院,研究生院,北京,100049
2. 中国科学院,计算机网络信息中心,北京,100190 |
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| 基金项目： | Supported by the National Basic Research Program of China under Grant No.2003CB314807 (国家重点基础研究发展计划(973)) |
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| 摘 要： | 建立并行下载模型,并基于这一模型,从下载节点效益的角度出发,分析并提出最优机制.这种最优机制包括最优的选择源节点集合和文件分块方案.理论分析表明,这种机制能够使下载节点代价函数最小.仿真结果说明了这种机制的有效性.
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| 关 键 词： | 并行下载 最优机制 带宽分配 文件块 对等系统 |
| 收稿时间： | 2007/11/1 0:00:00 |
| 修稿时间： | 5/5/2008 12:00:00 AM |
Optimal Mechanism of Parallel Downloading |
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| WANG Zheng,LUO Wan-Ming and YAN Bao-Ping.Optimal Mechanism of Parallel Downloading[J].Journal of Software,2009,20(8):2255-2268. |
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| Authors: | WANG Zheng LUO Wan-Ming and YAN Bao-Ping |
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| Affiliation: | Computer Network Information Center;The Chinese Academy of Sciences;Beijing 100190;China;Graduate University;Beijing 100049;China |
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| Abstract: | Parallel downloading is modeled. And based on the model, the optimal mechanism is analyzed and proposed in terms of the performance of downloading nodes. The optimal mechanism includes the optimal source nodes set selected and file blocking scheme. Theoretical analysis proves that this mechanism can minimize the cost function of downloading nodes. Simulation results justify the validity of this mechanism. |
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| Keywords: | parallel downloading optimal mechanism bandwidth allocation file block peer-to-peer system |
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