A Novel Spatial CCK Modulation Design for Underwater Acoustic Communications

被引：2

作者：

Jing, Lianyou ^{[1
]}

Wang, Han ^{[2
]}

He, Chengbing ^{[2
]}

Ding, Zhi ^{[3
]}

机构：

[1] Dalian Univ Technol, Sch Informat & Commun Engn, Dalian 116024, Peoples R China

[2] Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Shaanxi, Peoples R China

[3] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2019年 / 68卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Complementary code keying (CCK); transmit diversity; code diversity; Hamming distance; underwater acoustic communications; PERFORMANCE;

D O I：

10.1109/TVT.2019.2912583

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：

Underwater acoustic (UWA) channels exhibit double selectivity in both time and frequency domains, posing significant challenges to reliable UWA communications. This correspondence paper presents a novel spatial block coding scheme integrated with complementary code keying (CCK) modulation to exploit both spatial diversity and code diversity against doubly selective fading channels. The proposed spatial-CCK modulation utilizes multiple transmit transducers and extends the traditional CCK code set to improve receiver performance. We introduce novel code design criteria by considering maximum likelihood detection receivers under fast Rayleigh fading channel condition. Simulation and lake experiment results demonstrate substantial performance gain by the proposed spatial-CCK scheme over the conventional space-time codes without incurring additional high complexity cost for UWA channels.

引用

页码：6192 / 6196

页数：5

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