Evaluation of effects of multipath and co-channel interference on time reversal multiple-input/multiple-output in underwater acoustic channel

被引：22

作者：

Kida, Yukihiro ^{[1
]}

Deguchi, Mitsuyasu ^{[1
]}

Shimura, Takuya ^{[1
]}

机构：

[1] Japan Agcy Marine & Earth Sci & Technol, Marine Technol & Engn Ctr, Dept Engn Geomarine Sci, Acoust & Telecommun Grp, Yokosuka, Kanagawa 2370061, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2018年 / 57卷 / 07期

关键词：

PASSIVE-PHASE CONJUGATION; ULTRASONIC FIELDS; RETROFOCUSING TECHNIQUES; COMMUNICATION; OCEAN;

D O I：

10.7567/JJAP.57.07LG01

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The relationship between the performance of time-reversal-based multiple-input/multiple-output (MIMO) communication technique and the changes in the multipath environment is investigated quantitatively. In this study, the performance of adaptive time reversal (ATR)-MIMO is investigated by a parametric study approach. The ATR-MIMO communication technique is applied to the multipath-rich synthetic shallow sea acoustic dataset. We focused on discussing about the relationship among the changes in the multipath environment, the number of transmissions, the capability of ATR-MIMO to remove cochannel interference (CCI), and the efficiency of utilization of the energy of the multipath. The results reveal which characteristic of an acousticwavefield affects the performance of ATR-MIMO and how the performance saturates when the multipath environment changes. It is also demonstrated that ATR-MIMO can utilize the energy of the multipath as effectively as the passive-time-reversal-based single-input/multiple-output communication technique in a Gaussian-noise-dominant environment. (C) 2018 The Japan Society of Applied Physics

引用

页数：8

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