Equalization in Underwater Acoustic Orbital Angular Momentum Mode-Division Multiplexing

被引：1
|
作者：
Li, Zhipeng [1 ]
Zhang, Qing [1 ]
Wen, Xin [1 ]
Qu, Fengzhong [1 ]
Wei, Yan [1 ]
机构：
[1] Zhejiang Univ, Ocean Coll, Zhoushan, Zhejiang, Peoples R China
来源：
WUWNET'21: THE 15TH ACM INTERNATIONAL CONFERENCE ON UNDERWATER NETWORKS & SYSTEMS | 2021年
基金：
中国国家自然科学基金;
关键词：
high-speed underwater acoustic communication; orbital angular momentum-mode division multiplexing; decision-feedback equalizer; COMMUNICATION; LIGHT;
D O I：
10.1145/3491315.3491328
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Orbital angular momentum mode-division multiplexing (OAMMDM) communication has great potential to increase the data transmission rate and reduce the signal processing complexity in the field of underwater acoustic communications. However, the OAM signals suffer from the influence of multipath leading to the data streams unable to be separated. In addition, the inconsistency of transducers will destruct the OAM mode purity, and decrease the effective degree of freedom of underwater acoustic OAM-MDM. Here, we derive the wavefront of the OAM signals to analyze the underwater acoustic OAM-MDM under ideal conditions. The decisionfeedback equalizer (DFE) is exploited to mitigate the multipath and the inconsistency of transducers causing inter-mode interference of the underwater acoustic OAM-MDM. The theoretical analysis is verified by both simulations and experiments.
引用
收藏
页数：5
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