| 基于HSDPA的增强型分组调度算法研究 |
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| 引用本文： | 周莲英,霍婷婷. 基于HSDPA的增强型分组调度算法研究[J]. 计算机工程与应用, 2011, 47(14): 103-105. DOI: 10.3778/j.issn.1002-8331.2011.14.028 |
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| 作者姓名： | 周莲英 霍婷婷 |
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| 作者单位： | 江苏大学 计算机科学与通信工程学院，江苏 镇江 212013 |
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| 基金项目： | 国家高技术研究发展计划(863)，江苏省科技攻关项目 |
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| 摘 要： | 从系统吞吐量、用户公平性等方面分析研究了HSDPA系统中支持非实时业务的三种经典分组调度算法RR、Max C/I和PF。针对PF算法重传时延过长问题，提出了一种结合混合自动请求重传HARQ的增强分组调度算法。该算法通过提高重传分组的优先级降低重传时延，有效地避免系统资源的浪费。MATLAB仿真结果表明，该算法在降低单用户重传时延的同时，仍能保证用户间的公平性和系统的吞吐量。
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| 关 键 词： | 高速下行链路分组接入 分组调度算法 正比公平调度算法 重传时延 |
| 修稿时间： | |
Research on enhanced packet scheduling algorithm based on HSDPA |
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| ZHOU Lianying,HUO Tingting. Research on enhanced packet scheduling algorithm based on HSDPA[J]. Computer Engineering and Applications, 2011, 47(14): 103-105. DOI: 10.3778/j.issn.1002-8331.2011.14.028 |
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| Authors: | ZHOU Lianying HUO Tingting |
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| Affiliation: | Department of Computer Science and Telecommunication Engineering，Jiangsu University，Zhenjiang，Jiangsu 212013，China |
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| Abstract: | This paper analyzes and studies three classical packet scheduling algorithm RR,Max C/I and PF in system throughput and user fairness,which support non-real time services in HSDPA system.In connection with the problem of long retransmission delays in PF algorithm,this paper proposes an enhanced packet scheduling algorithm combined with hybrid au- tomatic request.The proposed algorithm can increase the priority and reduce retransmission delay of a UE that has HARQ re- transmission packets,effectively improve the utilization of resource.MATLAB simulation results display the proposed algo- rithm can maintain user fairness and system throughput when reduce retransmission delay |
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| Keywords: | High Speed Downlink Packet Access packet scheduling algorithm proportional fairness algorithm retransmission delay |
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