| 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. |
| 关键词: 并行下载 最优机制 带宽分配 文件块 对等系统 |
| DOI： |
| 分类号: |
| 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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| Optimal Mechanism of Parallel Downloading |
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WANG Zheng,LUO Wan-Ming,YAN Bao-Ping
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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. |
| Key words: parallel downloading optimal mechanism bandwidth allocation file block peer-to-peer system |
