Two-timescale unlicensed spectrum partitioning algorithm between LTE and Wi-Fi network

Weihua WU; Runzi LIU; Qinghai YANG

doi:10.11959/j.issn.1000-436x.2021059

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Two-timescale unlicensed spectrum partitioning algorithm between LTE and Wi-Fi network

Papers | 更新时间：2024-06-05

- Two-timescale unlicensed spectrum partitioning algorithm between LTE and Wi-Fi network
- Journal on Communications Vol. 42, Issue 3, Pages: 45-53(2021)
- 作者机构：
  
  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
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61801365);The National Natural Science Foundation of China(61701365);The National Natural Science Foundation of China(61971327);China Post-doctoral Science Foundation(2018M643581);Young Talent Fund of University Association for Science and Technology in Shannxi Province(20200112);Research Funds for the Central Universities(20103216726)
- DOI：10.11959/j.issn.1000-436x.2021059
  CLC： TN929.5
- Online First：2021-03，
  
  Published：25 March 2021
- 稿件说明：
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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：

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.

摘要

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。

Abstract

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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references

WANG X , QUEK T Q S , SHENG M , et al . Throughput and fairness analysis of Wi-Fi and LTE-U in unlicensed band [J ] . IEEE Journal on Selected Areas in Communications , 2017 , 35 ( 1 ): 63 - 78 .

HUANG Y , CHEN Y , HOU Y T , et al . Recent advances of LTE/Wi-Fi coexistence in unlicensed spectrum [J ] . IEEE Network , 2018 , 32 ( 2 ): 107 - 113 .

YUAN X , QIN X , TIAN F , et al . Coexistence between Wi-Fi and LTE on unlicensed spectrum:a human-centric approach [J ] . IEEE Journal on Selected Areas in Communications , 2017 , 35 ( 4 ): 964 - 977 .

CHEN Y , DUAN L , HUANG J , et al . Balancing income and user utility in spectrum allocation [J ] . IEEE Transactions on Mobile Computing , 2015 , 14 ( 12 ): 2460 - 2473 .

WU W , YANG Q , LIU R , et al . Online spectrum partitioning for LTE-U and WLAN coexistence in unlicensed spectrum [J ] . IEEE Transactions on Communications , 2020 , 68 ( 1 ): 506 - 520 .

CHEN J , LAU V K N . Delay analysis of max-weight queue algorithm for time-varying wireless ad hoc networks—control theoretical approach [J ] . IEEE Transactions on Signal Processing , 2013 , 61 ( 1 ): 99 - 108 .

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RHEE I , SHIN M , HONG S , et al . On the Levy-walk nature of human mobility [J ] . IEEE/ACM Transactions on Networking , 2011 , 19 ( 3 ): 630 - 643 .

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