Research Article
Properties and Performance of the Orbital-Angular-Momentum Modes in Wireless Communication
@INPROCEEDINGS{10.1007/978-3-030-44751-9_43, author={Chen Feng and Jinhong Li}, title={Properties and Performance of the Orbital-Angular-Momentum Modes in Wireless Communication}, proceedings={IoT as a Service. 5th EAI International Conference, IoTaaS 2019, Xi’an, China, November 16-17, 2019, Proceedings}, proceedings_a={IOTAAS}, year={2020}, month={6}, keywords={Orbital angular momentum IoT Vortex}, doi={10.1007/978-3-030-44751-9_43} }- Chen Feng
Jinhong Li
Year: 2020
Properties and Performance of the Orbital-Angular-Momentum Modes in Wireless Communication
IOTAAS
Springer
DOI: 10.1007/978-3-030-44751-9_43
Abstract
The orbital-angular-momentum (OAM) mode multiplexing is one of the promising ways to improve the efficiency of the spectrum utilization of the network in the Internet of Things (IoT). In this article, the propagation properties and the communication performance of the OAM modes in radio frequency are studied. The transverse patterns for the single mode, two/three superimposed modes are discussed, while the influences of the mode number and the propagation distance on the beam width are analyzed. Based on 2FSK and 2PSK modulations the bit error rate (BER) of OAM modes are found varying with both the mode and the receiving radius of the array antennas. By analyzing the BER, it is found that when both the transmitting antenna and the transmitting power are fixed, also the noise power is the same, an OAM mode can have different optimal receiving radii in the single mode transmission and in the mode multiplexing transmission. These results will be helpful in optimizing the OAM mode receiving system and may have applications in the network of the IoT.