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1. 西安电子科技大学通信工程学院,陕西 西安 710071
2. 西安建筑科技大学信息与控制工程学院,陕西 西安 710055
[ "吴伟华(1988- ),男,河北石家庄人,博士,西安电子科技大学讲师,主要研究方向为无线资源分配、人工智能、随机网络优化及其在LTE-U网络中的应用。" ]
[ "刘润滋(1988- ),女,山东潍坊人,博士,西安建筑科技大学副教授,主要研究方向为无线网络、空间网络中的资源管理和性能分析。" ]
[ "杨清海(1976- ),男,山东高密人,博士,西安电子科技大学教授,主要研究方向为自主通信、内容交付网络和LTE-A技术等。" ]
网络出版日期:2021-03,
纸质出版日期:2021-03-25
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吴伟华, 刘润滋, 杨清海. LTE和Wi-Fi网络的双时间尺度未授权频谱划分算法[J]. 通信学报, 2021,42(3):45-53.
Weihua WU, Runzi LIU, Qinghai YANG. Two-timescale unlicensed spectrum partitioning algorithm between LTE and Wi-Fi network[J]. Journal on communications, 2021, 42(3): 45-53.
吴伟华, 刘润滋, 杨清海. LTE和Wi-Fi网络的双时间尺度未授权频谱划分算法[J]. 通信学报, 2021,42(3):45-53. DOI: 10.11959/j.issn.1000-436x.2021059.
Weihua WU, Runzi LIU, Qinghai YANG. Two-timescale unlicensed spectrum partitioning algorithm between LTE and Wi-Fi network[J]. Journal on communications, 2021, 42(3): 45-53. DOI: 10.11959/j.issn.1000-436x.2021059.
根据Wi-Fi和LTE的频谱划分决策分别取决于全局信道状态信息(CSI)和局部CSI,提出了双时间尺度频谱划分算法,在较大时间尺度上根据全局CSI划分Wi-Fi频谱,在较小时间尺度上根据局部CSI划分LTE频谱。设计了自适应反馈补偿机制以提高双时间尺度算法的跟踪性能。此外,得到双时间尺度算法能够无差错地跟踪上均衡点的充分条件。仿真实验表明,双时间尺度算法能够以非常低的开销实现较好系统性能。
According to the spectrum partitioning decisions of Wi-Fi and LTE respectively depended on global channel state information (CSI) and local CSI
an online two-timescale iteration algorithm was developed.The Wi-Fi spectrum was partitioned at the large timescale according to the global CSI whereas the LTE spectrum was partitioned according to the fast-changing local CSI.Then
the adaptive compensation mechanism was designed for improving the tracking performance of the two-timescale algorithm.Moreover
the sufficient condition was derived for the two-timescale algorithm tracking the moving equilibrium point without errors.Finally
the simulation results show that the proposed two-timescale algorithm achieves excellent system performance at very low overhead.
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