Research on Kernel Functions of SVM for Line-of-sight Identification in Vehicle-to-Vehicle MIMO System

被引:0
|
作者
Huang, Chen [1 ,2 ]
Molisch, Andreas F. [1 ]
Wang, Rui [1 ]
Tang, Pan [1 ]
He, Ruisi [3 ]
Zhong, Zhangdui [3 ,4 ]
机构
[1] Univ Southern Calif, Ming Hsieh Dept Elect & Comp Engn, Los Angeles, CA 90007 USA
[2] Beijing Jiaotong Univ, Sch Comp & Informat Technol, Beijing 100044, Peoples R China
[3] Beijing Jiaotong Univ, State Key Lab Rail Traff Control & Safety, Beijing 100044, Peoples R China
[4] Beijing Jiaotong Univ, Beijing Engn Res Ctr High Speed Railway Broadband, Beijing 100044, Peoples R China
关键词
NLOS identification; channel measurement; Rician-K-factor; channel modeling; support vector machines;
D O I
10.1109/apusncursinrsm.2019.8888567
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Generally, propagation channels show significantly different characteristics for line-of-sight (LOS) and non-line-ofsight (NLOS) conditions. Due to their good performance in classification problems, support vector machines (SVM) have been widely used for NLOS identification of propagation channels. In this paper, we investigate the impact of different kernel functions on the accuracy of SVM-based NLOS identification and validate the performance based on measured channel data. We find that a Gaussian kernel reduces the mis-identification rate by a factor 4 compared to a linear kernel, and also outperforms polynomial and sigmoid kernels.
引用
收藏
页码:2107 / 2108
页数:2
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