| LTE-A/WLAN中基于马尔可夫过程的接入选择算法研究 |
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| 引用本文： | 赵夙,余梅,朱晓荣.LTE-A/WLAN中基于马尔可夫过程的接入选择算法研究[J].南京邮电大学学报(自然科学版),2014,34(6):15-21. |
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| 作者姓名： | 赵夙 余梅 朱晓荣 |
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| 作者单位： | 1. 南京邮电大学江苏省无线通信重点实验室,江苏南京,210003
2. 南京邮电大学江苏省无线通信重点实验室,江苏南京210003 ;东南大学移动通信国家重点实验室,江苏南京210096 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金，江苏省自然科学基金，东南大学移动通信国家重点实验室开放研究基金，江苏省高校自然科学基金，南京邮电大学引进人才科研启动基金 |
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| 摘 要： | 在LTE-A/WLAN融合的异构网络中,为了随时随地为用户提供最好的连接,文中提出了一种基于马尔可夫过程的接入选择算法.当不同业务类型的用户到达这两个网络重叠覆盖的区域时,该算法根据当前各接入网的网络状态和用户业务类型做出相应的接纳控制决策,包括是否接纳该用户以及接纳到何种网络,通过仿真和采用马尔可夫过程分析该异构网络的系统性能,证明了该算法能够有效提高该异构网络系统的吞吐量,降低阻塞概率,改善异构网络中无线资源的利用率.
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| 关 键 词： | 异构网络 接入选择 马尔可夫过程 协同无线资源管理 |
An Access Selection Algorithm Based on Markov Process for LTE-A/WLAN Heterogeneous Network |
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| ZHAO Su,YU Mei,ZHU Xiao-rong.An Access Selection Algorithm Based on Markov Process for LTE-A/WLAN Heterogeneous Network[J].Journal of Nanjing University of Posts and Telecommunications,2014,34(6):15-21. |
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| Authors: | ZHAO Su YU Mei ZHU Xiao-rong |
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| Institution: | ZHAO Su ,YU Mei, ZHU Xiao-rong ( 1. Jiangsu Key Laboratory of Wireless Communication, Nanjing University of Posts and Telecommunications, Nanjing 210003, China 2. National Mobile Communications Research Laboratory, Southeast University, Nanjing 210096, China) |
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| Abstract: | An access selection algorithm based on Markov process is proposed to provide users with the best connection anytime and anywhere in LTE-A/WLAN Heterogeneous Network. When different types of services arrived at the overlay area of these two networks, the algorithm will make a corresponding decision based on network states and service type, including whether to it will be accepted and which network it access. Also and analyze the performances of the heterogeneous network are analyzed by the proposed model. Simulation results show that the proposed algorithm can effectively enhance the throughput of the heterogeneous network, decrease the total blocking probability and improve the resource utilization. |
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| Keywords: | heterogeneous network access selection Markov process common radio resource management |
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