| 异构无线网络环境下的切换触发时间选择算法 |
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| 引用本文： | 闫继垒,李建东,赵林靖. 异构无线网络环境下的切换触发时间选择算法[J]. 通信学报, 2011, 32(11): 125-131 |
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| 作者姓名： | 闫继垒 李建东 赵林靖 |
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| 作者单位： | 西安电子科技大学综合业务网理论和关键技术国家重点实验室,陕西西安,710071 |
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| 基金项目： | 国家自然科学基金资助项目，国家重点基础研究发展计划("973"计划)基金资助项目，国家杰出青年科学基金资助项目，国家科技重大专项基金资助项目，长江学者和创新团队发展计划基金资助项目，高等学校学科创新引智计划基金资助项目 |
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| 摘 要： | 对移动用户在异构网络环境下的切换触发时间选择问题进行了研究。首先对移动终端触发切换的时间选择问题进行了理论分析,找到了最佳切换触发时间所应满足的条件。然后在切换耗时估计和接收信号强度预测的基础上,提出了一种预测最佳切换触发时间的算法。仿真结果表明,本算法能够有效降低用户的分组丢失概率和切换失败概率。
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| 关 键 词： | 异构网络 切换 触发时间 预测 |
Handover trigger time selection algorithm in heterogeneous wireless networks environment |
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| YAN Ji-lei,LIJian-dong,ZHAO Lin-jing. Handover trigger time selection algorithm in heterogeneous wireless networks environment[J]. Journal on Communications, 2011, 32(11): 125-131 |
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| Authors: | YAN Ji-lei LIJian-dong ZHAO Lin-jing |
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| Affiliation: | (State Key Laboratory of Integrated Service Networks,Xidian University,Xi’an 710071,China) |
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| Abstract: | The handover trigger time selection problem for mobile user in the heterogeneous networks environment was discussed.Firstly,theoretical analysis of the handover trigger time selection was presented and the constraint which the optimal handover trigger time should satisfy was obtained.Then,an algorithm was proposed to predict the optimal hand-over trigger time based on the estimation of handover delay and the prediction of received signal strength.Simulation re-sults show that this algorithm can effectively ... |
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| Keywords: | heterogeneous network handover trigger time prediction |
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