High Reliable Orbital Angular Momentum Wireless Communications for Space Information Networks

2019 11th International Conference on Wireless Communications and Signal Processing (WCSP) Pub Date : 2019-10-01 DOI:10.1109/WCSP.2019.8928116

Runyu Lyu, Wenchi Cheng, Wei Zhang, Hailin Zhang

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引用次数: 1

Abstract

Space wireless communications have been developing for several decades, along with traditional orthogonal resources such as frequency and time widely explored. To further increase the capacity of space information networks, new orthogonal resources are highly expected to be used for space wireless communications. In recent years, electromagnetic (EM) waves carrying orbital angular momentum (OAM), which is a kind of nonplanar EM waves (NEWs), received much attention due to their orthogonal beam structures. However, for space wireless communications, reliability is very crucial, thus challenging the utilization of OAM wireless communications for space information networks. In this paper, we propose the cosine weighting function based NEWs wireless transmission, which is a kind of high reliable OAM based wireless communications, for space information networks. At first, we give the system model of the cosine function based NEWs wireless transmission. Then, we derive the electric fields and array factors of the cosine based NEWs. After that, the orthogonality among cosine based different NEWs-modes is proved. Following that, the analyses for modulation/demodulation, received bit-error-rate, and corresponding capacity are given. Simulation results validate that cosine based NEWs are more reliable than traditional OAM beams for space wireless communications.

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空间信息网高可靠轨道角动量无线通信

空间无线通信已经发展了几十年，随着传统正交资源如频率和时间的广泛探索。为了进一步提高空间信息网络的容量，人们对空间无线通信中使用新的正交资源寄予厚望。近年来，携带轨道角动量的电磁波作为一种非平面电磁波(NEWs)，由于其波束结构正交而备受关注。然而，对于空间无线通信来说，可靠性是非常关键的，因此对空间信息网OAM无线通信的利用提出了挑战。本文提出了一种基于余弦加权函数的新闻无线传输，它是一种高可靠的基于OAM的空间信息网络无线通信。首先，给出了基于余弦函数的新闻无线传输系统模型。然后，我们推导了基于余弦的NEWs的电场和阵列因子。然后，证明了基于不同news模态的余弦函数之间的正交性。然后，对调制/解调、接收误码率和相应容量进行了分析。仿真结果验证了基于余弦的NEWs在空间无线通信中比传统的OAM波束更可靠。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2019 11th International Conference on Wireless Communications and Signal Processing (WCSP)

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