| IEEE802.16e的新型节能机制分析与仿真 |
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| 引用本文： | 唐朝伟,傅明怡,邵艳清,杨永齐,赵丽娟. IEEE802.16e的新型节能机制分析与仿真[J]. 重庆大学学报(自然科学版), 2009, 32(1): 100-104 |
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| 作者姓名： | 唐朝伟 傅明怡 邵艳清 杨永齐 赵丽娟 |
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| 作者单位： | 重庆大学通信工程学院,重庆,400030 |
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| 基金项目： | 重庆市自然科学基金项日 |
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| 摘 要： | IEEE802.16e的移动站点接收到的数据是随机到达的,在到达率较小时,较小的Tmm(初始睡眠长度)和Tmax(最大睡眠长度)将使移动站点不断被唤醒.使平均侦听次数增大,导致移动站点的能耗过大;在到达率较大时,较大的Tmin、Tmax将使响应时间变长.为改进这种情况,提出了一种新的自适应节能机制,首先对Tmm以及与之对应的Tmax赋值,一个睡眠模式里Tmax持续的个数定义为J;当进入一个睡眠模式时,其实时Tmm定义为R(Tmm),由上一个睡眠模式的Tmax持续个数J决定,从而迭到动态调节Tmm减少平均侦听次数的目的,采用马尔可夫链模型对上述机制进行了分析.仿真结果验证了该节能机制的有效性.
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| 关 键 词： | 移动站点 节能机制 睡眠模式 |
Analysis and simulation of a novel energy saving mechanism based on IEEE802.16e |
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| TANG Chao wei,FU Ming yi,SHAO Yan qing,YANG Yong qi and ZHAO Li juan. Analysis and simulation of a novel energy saving mechanism based on IEEE802.16e[J]. Journal of Chongqing University(Natural Science Edition), 2009, 32(1): 100-104 |
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| Authors: | TANG Chao wei FU Ming yi SHAO Yan qing YANG Yong qi ZHAO Li juan |
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| Affiliation: | College of Communication Engineering;Chongqing University;Chongqing 400030;P.R.China |
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| Abstract: | The arrival time of data received by a mobile station in IEEE 802.16e is stochastic.When the arrival rate is low,the shorter initial sleep time(Tmin) and the maximal sleep time(Tmax) will lead to the mobile station being awakened frequently,which increases the average listening times and consumes more energy.On the other hand,when the arrival rate is high,longer Tmin and Tmax lead to longer response times.To address these problems,a novel adaptive energy saving mechanism is proposed.Firstly,Tmin and its cor... |
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| Keywords: | IEEE820.16e |
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