Wireless Communications with Programmable Metasurface:Transceiver Design and Experimental Results

查看全文 作　　者：Wankai [1]Tang;Xiang [1]Li;Jun Yan [2]Dai;Shi [1]Jin;Yong [1]Zeng;Qiang [2]Cheng;Tie Jun [2]Cui

机构地区：[1]National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China;[2]State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China

出　　处：《China Communications》索引2019年第16卷第5期,共16页

基　　金：supported in part by the National Science Foundation(NSFC)for Distinguished Young Scholars of China with Grant 61625106;the National Natural Science Foundation of China under Grant 61531011 摘　　要：Metasurfaces have drawn significant attentions due to their superior capability in tailoring electromagnetic waves with a wide frequency range, from microwave to visible light. Recently, programmable metasurfaces have demonstrated the ability of manipulating the amplitude or phase of electromagnetic waves in a programmable manner in real time, which renders them especially appealing in the applications of wireless communications. In this paper, we present the fundamental principle of applying programmable metasurface as transmitter for wireless communications. Then, we establish a prototype system of metasurface-based transmitter to conduct several experiments and measurements over the air, which practically demonstrate the feasibility of using programmable metasurfaces in future communication systems. By exploiting the dynamically controllable property of programmable metasurface, the design, implementation and experimental evaluation of the proposed metasurface-based wireless communication system are presented with the prototype, which realizes single carrier quadrature phase shift keying(QPSK) transmission over the air. In the developed prototype, the phase of the reflected electromagnetic wave of programma-ble metasurface is directly manipulated in real time according to the baseband control signal, which achieves 2.048 Mbps data transfer rate with video streaming transmission over the air. In addition, experimental result is provided to compare the performance of the proposed metasurface-based architecture against the conventional one. With the slight increase of the transmit power by 5 dB, the same bit error rate(BER) performance can be achieved as the conventional system in the absence of channel coding. Such a result is encouraging considering that the metasurface-based system has the advantages of low hardware cost and simple structure, thus leading to a promising new architecture for wireless communications. 关键词：metasurface WIRELESS COMMUNICATION PROTOTYPE system ARCHITECTURE overthe-air measurement

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Wireless Communications with Programmable Metasurface:Transceiver Design and Experimental Results

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