| 3GPP LTE系统中结合位置预测的切换算法 |
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| 引用本文： | 孙巍巍,苏寒松,滕友伟,徐勇.3GPP LTE系统中结合位置预测的切换算法[J].计算机应用,2012,32(7):1849-1851. |
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| 作者姓名： | 孙巍巍 苏寒松 滕友伟 徐勇 |
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| 作者单位： | 1. 天津大学 电子信息工程学院，天津300072
2. 奥维通信股份有限公司 沈阳研发部，沈阳110179 |
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| 摘 要： | 针对3GPP LTE系统中因频繁切换而导致的系统吞吐量降低的问题，提出了基于用户运动机制及其方向改变概率的预测模型，并将其与标准的长期演进(LTE)切换算法相结合。模型使用方向改变概率计算各个可能位置的接收信号强度的权重，再求和得到预测的接收信号强度。经过仿真对比，使用结合位置预测的切换算法后，切换次数没有明显变化，但系统吞吐量有所提高。相比于传统的数据挖掘预测模型，提出的预测模型效果更好。
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| 关 键 词： | 长期演进 位置预测 切换算法 |
| 收稿时间： | 2011-12-31 |
| 修稿时间： | 2012-02-22 |
Handover algorithm combined with location prediction in 3 GPP LTE systems |
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| SUN Wei-wei
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SU Han-song
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TENG You-wei
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XU Yong.Handover algorithm combined with location prediction in 3 GPP LTE systems[J].journal of Computer Applications,2012,32(7):1849-1851. |
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| Authors: | SUN Wei-wei SU Han-song TENG You-wei XU Yong |
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| Affiliation: | 1. School of Electronic Information Engineering, Tianjin University, Tianjin 300072, China
2. Shenyang Research and Development Department, Allwin Telecommunication Corporation Limited, Shenyang Liaoning 110179, China |
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| Abstract: | Concerning the problem of the decline of 3GPP Long Term Evolution(LTE) system throughput caused by the frequent handover,a location prediction model based on user movement mechanism and changing probability of direction was proposed.The proposed model was combined with the standard handover algorithm of LTE.The model calculated the weight of each possible location using the changing probability of direction,then got the predicted received signal strength through summing.The simulation results show that the number of handover does not change obviously,but the system throughput is improved after using the combined algorithm.In addition,the proposed model is better than the traditional data mining prediction model. |
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| Keywords: | Long Term Evolution(LTE) location prediction handover algorithm |
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