Channel estimation based on weighted construction of data pilot for V2V communication

被引：0

作者：

Shi, Ying ^{[1
,2
]}

Chen, Jiale ^{[2
]}

Wang, Tong ^{[1
]}

Chen, Yiping ^{[2
]}

Feng, Chi ^{[1
]}

机构：

[1] College of Information and Communication Engineering, Harbin Engineering University, Harbin

[2] School of Electric and Information Engineering, Heilongjiang University of Science and Technology, Harbin

来源：

Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University | 2023年 / 44卷 / 10期

关键词：

bit error rate; channel estimation; constructed data pilot; IEEE; 802.11; protocal; root mean square error; V2V communication channel; vehicle-to-vehicle (V2V) communication; weighted factor;

D O I：

10.11990/jheu.202204008

中图分类号：

学科分类号：

摘要：

A channel estimation algorithm based on time-frequency domain correlation to construct data pilots, weighted smoothing and reconstruction decision strategy is proposed in this paper to solve the problem of the in⁃ sufficient number of pilots in the IEEE 802.11p protocol being unable to ensure the accurate tracking of the rap⁃ id changes in a vehicle networking channel. Without changing the standard pilot structure of the IEEE 802.11p protocol, this algorithm can effectively use the strong correlation between adjacent subcarriers in the frequency domain and adjacent Orthogonal Frequency Division Multiplexing symbols in the time domain to construct the data pilot, and introduce the weight factor to update the channel estimation value in the time domain at the front and rear moments. The weight factor is introduced to dynamically update the channel estimation value in the time domain, and the decision strategy of the Construct Data Pilot algorithm is reconstructed by combining the frequency domain average. Simulation results revealed that the proposed algorithm was superior to other algo⁃ rithms, such as the Spectral Temporal Averaging algorithm and the Construct Data Pilot algorithm, in terms of in terms of bit error rate and root mean square error in three different Vehicle-to-Vehicle communication scenarios. © 2023 Editorial Board of Journal of Harbin Engineering. All rights reserved.

引用

页码：1758 / 1764

页数：6

共 19 条

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