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| 颜国风,王建新,陈淑红.大规模无线网络中(X,S)-Bottleneck 区域性能分析.软件学报,2012,23(2):323-334 |
| 大规模无线网络中(X,S)-Bottleneck 区域性能分析 |
| Performance Analysis of (X,S)-Bottleneck Cell in Large-Scale Wireless Networks |
| 投稿时间：2010-06-17 修订日期：2010-11-17 |
| DOI：10.3724/SP.J.1001.2012.03968 |
| 中文关键词: 性能分析 无线网络 QBD(quasi birth-death) 通信瓶颈 网络性能 |
| 英文关键词:performance analysis wireless networks QBD (quasi birth-death) communication bottleneck network performance |
| 基金项目:国家自然科学基金(60873265, 60903222); 国家高技术研究发展计划(863)(2009AA11Z205); 湖南省教育厅科研基金(09C269) |
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| 摘要点击次数: 2795 |
| 全文下载次数: 3235 |
| 中文摘要: |
| 基于二层QBDs(quasi birth-death models),提出了一个(X,S)-bottleneck 区域性能分析模型,(X,S)-bottleneck 区域的特征通过第1 层QBD 模型描述,而经过(X,S)-bottleneck 区域的每条流的特征由第2 层QBD 模型描述.基于该性能分析模型,对(X,S)-bottleneck 区域的性能进行了一些概率分析,如(X,S)-bottleneck 区域的平衡状态概率、经过该区域通信流的成功转发概率和吞吐量等,确定了上述概率及吞吐量的取值范围.仿真实验结果表明了该性能分析模型对于分析(X,S)-bottleneck 区域性能的有效性.结论有助于无线网络通信性能的改进和管理. |
| 英文摘要: |
| The performance analytical model for (X,S)-bottleneck cell is proposed and perform some probabilistic analysis on the performances of (X,S)-bottleneck cell, such as the probability of balance state, the transmission probability of a flow, and the throughput of (X,S)-bottleneck cell. To capture the essential aspects of (X,S)- bottleneck cell, two-hierarchy Quasi Birth-Death models (QBDs) are used to model the (X,S)-bottleneck cell. The general characters of (X,S)-bottleneck cell are govern by the first hierarchy QBDs, while the characters of each flow are captured by the second hierarchy QBDs. Based on the analytical model, a methodology to derive the balance-state probability of (X,S)-bottleneck cell is proposed, and some theoretic ranges for the transmission probability of a flow and the throughput. The simulations show that the proposed model can analyze effectively the performance of (X,S)-bottleneck cell. The results are helpful for improving and managing wireless networks. |
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