通信学报 ›› 2019, Vol. 40 ›› Issue (2): 92-101.doi: 10.11959/j.issn.1000-436x.2019038
修回日期:
2019-01-17
出版日期:
2019-02-01
发布日期:
2019-03-04
作者简介:
唐宏(1967- ),男,四川南充人,重庆邮电大学教授,主要研究方向为计算机网络、移动通信。|牟泓彦(1994- ),女,重庆人,重庆邮电大学硕士生,主要研究方向为窄带物联网定位、移动通信。|杨浩澜(1977- ),男,重庆人,重庆邮电大学讲师,主要研究方向为移动通信技术。
基金资助:
Hong TANG1,2,Hongyan MOU1,2(),Haolan YANG1,2
Revised:
2019-01-17
Online:
2019-02-01
Published:
2019-03-04
Supported by:
摘要:
针对窄带物联网(NB-IoT)低功耗、低成本、低采样率等特点,提出了一种基于小区间干扰消除的NB-IoT时延估计算法,所提算法引入了小区间迭代干扰消除算法,以逐步消除各小区信号之间的相互影响。在每一次迭代中,在传统相关算法的基础上引入时频互相关交叠的思想来提升时延估计精度以突破采样率的限制,并采用基于噪声门限的首达径(FAP)搜索算法来抑制多径效应的影响。仿真结果表明所提算法可以在相关算法的基础上明显提高NB-IoT的时延估计精度。
中图分类号:
唐宏,牟泓彦,杨浩澜. 基于小区间干扰消除的NB-IoT时延估计算法[J]. 通信学报, 2019, 40(2): 92-101.
Hong TANG,Hongyan MOU,Haolan YANG. Time delay estimation algorithm of narrow band internet of things based on inter-cell interference cancellation[J]. Journal on Communications, 2019, 40(2): 92-101.
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