| 基于TD-LTE系统的无线资源调度策略分析与实现 |
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| 引用本文： | 李亚军,王全宝,董亚光,朱 军,马宏博.基于TD-LTE系统的无线资源调度策略分析与实现[J].国际商务研究,2012,52(11). |
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| 作者姓名： | 李亚军 王全宝 董亚光 朱 军 马宏博 |
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| 作者单位： | 上海贝尔股份有限公司，上海 201206;上海交通大学 航空航天学院，上海 200240;上海贝尔股份有限公司，上海 201206;上海贝尔股份有限公司，上海 201206;上海贝尔股份有限公司，上海 201206 |
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| 摘 要： | MAC层调度是TD-LTE系统最核心的部分，其目的是充分利用无线信道的时变特性，得
到多用户的分集增益。针对不同系统容量与吞吐量的设计目标原则，调度策略按照轮询、最
大载干比、比例公平3种方法实现。通过系统实现与实测表明，最大载干比算法以牺牲系统
容量为代价在系统吞吐量上有明显增益；比例公平算法则很好地兼顾了系统容量与吞吐量
，相比于最大载干比算法在容量上有显著提升。
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| 关 键 词： | TD-LTE MAC层调度策略 最大载干比 轮询 比例公平 |
Analysis and implementation of radio resource scheduling in TD-LTE system |
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| LI Ya-jun,WANG Quan-bao,DONG Ya-guang,ZHU Jun and MA Hong-bo.Analysis and implementation of radio resource scheduling in TD-LTE system[J].International Business Research,2012,52(11). |
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| Authors: | LI Ya-jun WANG Quan-bao DONG Ya-guang ZHU Jun and MA Hong-bo |
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| Abstract: | Medium Acess Control(MAC) scheduling is crucial to the TD-LTE(Time-division Lo
ng Term Evolution) network system. It is intended
for achieving multiple user gain by taking full advantage of the time-varying
property of wireless channel. MAC scheduler can be implemented using round-robin
, Max C/I and proportional fair scheduling policy with the different target for c
apacity, throughput or in between them. The field testing results show that Max
C/I algorithm has a considerable gain over others with respect to the throughput
at a cost of capacity while proportional fair scheduling achievs a desirable tr
adeoff between capacity and throughput. |
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| Keywords: | TD-LTE MAC scheduling policy max C/I round-robin proportional fair |
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