| 1x EV DO反向链路概率自适应速率控制算法 |
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| 引用本文： | 张伟,柴远波,谷立鹏,张鑫.1x EV DO反向链路概率自适应速率控制算法[J].信息工程大学学报,2010,11(5):600-604. |
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| 作者姓名： | 张伟 柴远波 谷立鹏 张鑫 |
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| 作者单位： | 信息工程大学,信息工程学院,河南,郑州,450002 |
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| 基金项目： | 河南省杰出青年科学基金资助项目 |
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| 摘 要： | 针对cdma2000 1x EV-DO现有速率控制算法适应负载变化能力不高的问题,提出了一种概率自适应速率控制算法。该算法引入滑动窗口机制,通过统计反向激活比特值的变化情况,灵活改变速率转移概率,从而更加准确地适应系统负载的变化。仿真结果表明,该算法比现有算法明显改善了系统吞吐量和过载概率的性能,实现了二者之间良好的折衷。
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| 关 键 词： | 1x EV-DO 速率控制 速率转移概率 反向激活比特 |
Probability Adaptive Rate Control Algorithm for the Reverse Link in 1x EV-DO Systems |
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| ZHANG Wei,CHAI Yuan bo,GU Li peng,ZHANG Xin.Probability Adaptive Rate Control Algorithm for the Reverse Link in 1x EV-DO Systems[J].Journal of Information Engineering University,2010,11(5):600-604. |
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| Authors: | ZHANG Wei CHAI Yuan bo GU Li peng ZHANG Xin |
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| Affiliation: | (Institute of Information Engineering,Information Engineering University,Zhengzhou 450002,China) |
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| Abstract: | A probability adaptive rate control algorithm is proposed to solve the poor adaptivity of the system load in the traditional algorithm for cdma2000 1x EV-DO reverse link.This algorithm introduces the sliding windows mechanism,and according to the statistical states of reverse activity bits,the terminals could change the rate transition probability flexibly to adapt to the fluctuation of the system load more accurately.Simulation results show that this algorithm not only evidently improves the performance of system throughput and outage probability,but also makes a better trade-off between them. |
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| Keywords: | 1x EV-DO |
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