[1] BASAR E, DI RENZO M, DE ROSNY J, et al. Wireless communications through reconfigurable intelligent surfaces[J]. IEEE Access,2019,7:116753-116773. [2] SAAD W,BENNIS M,CHEN M Z. A vision of 6G wireless systems:applications,trends,technologies,and open research problems[J]. IEEE Network,2020,34(3):134-142. [3] HE Z Q, YUAN X J. Cascaded channel estimation for large intelligent metasurface assisted massive MIMO[J]. IEEE Wireless Communications Letters,2020,9(2):210-214. [4] HUANG C W,ZAPPONE A,ALEXANDROPOULOS G C,et al. Reconfigurable intelligent surfaces for energy efficiency in wireless communication[J]. IEEE Transactions on Wireless Communications, 2019,18(8):4157-4170. [5] WU Q Q, ZHANG R. Intelligent reflecting surface enhanced wireless network via joint active and passive beamforming[J]. IEEE Transactions on Wireless Communications,2019,18(11):5394-5409. [6] TAHA A, ALRABEIAH M, ALKHATEEB A. Enabling large intelligent surfaces with compressive sensing and deep learning[J]. IEEE Access,2021,9:44304-44321. [7] ZHAO J, LIU Y. A survey of Intelligent Reflecting Surfaces (IRSs):towards 6G wireless communication networks[EB/OL]. (2019-11-02)[2020-11-21]. https://arxiv.org/pdf/1907.04789.pdf. [8] HU S,RUSEK F,EDFORS O. The potential of using large antenna arrays on intelligent surfaces[C]//Proceedings of the IEEE 85th Vehicular Technology Conference. Piscataway:IEEE,2017:1-6. [9] LIU H,YUAN X J,ZHANG Y J. Super-resolution blind channeland-signal estimation for massive MIMO with one-dimensional antenna array[J]. IEEE Transactions on Signal Processing,2019, 67(17):4433-4448. [10] WU Q Q, ZHANG R. Towards smart and reconfigurable environment:intelligent reflecting surface aided wireless network[J]. IEEE Communications Magazine,2020,58(1):106-112. [11] YOU C S,ZHENG B X,ZHANG R. Intelligent reflecting surface with discrete phase shifts:channel estimation and passive beamforming[C]//Proceedings of the 2020 IEEE International Conference on Communications. Piscataway:IEEE,2020:1-6. [12] ABEYWICKRAMA S,ZHANG R,WU Q Q,et al. Intelligent reflecting surface:practical phase shift model and beamforming optimization[J]. IEEE Transactions on Communications,2020, 68(9):5849-5863. [13] FOO S. Liquid-crystal reconfigurable metasurface reflectors[C]//Proceedings of the 2017 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting. Piscataway:IEEE,2017:2069-2070. [14] LIASKOS C,NIE S,TSIOLIARIDOU A,et al. A new wireless communication paradigm through software-controlled metasurfaces[J]. IEEE Communications Magazine,2018,56(9):162-169. [15] 李然, 武刚, 李岩. 智能反射表面无线通信的信道估计与帧结构设计[J]. 无线电通信技术,2021,47(1):36-43.(LI R,WU G,LI Y. Channel estimation and frame structure design for IRSassisted wireless communication[J]. Radio Communications Technology,2021,47(1):36-43.) [16] 黄大勇. 可重构频率选择表面的研究与应用[D]. 西安:西安电子科技大学, 2018:2-3. (HUANG D Y. Research and application of reconfigurable frequency selective surfaces[D]. Xi' an:Xidian University,2018:2-3.) [17] 田顺成, 赵玉颖, 李龙. 频率可重构反射阵单元及阵列设计[C]//2018年全国微波毫米波会议论文集(上册). 成都:中国电子学会,2018:254-258.(TIAN S C,ZHAO Y Y,LI L. Design of frequency agility element and reconfigurable reflectarray[C]//Proceedings of the 2018 National Conference on Microwave and Millimeter Waves(Volume 1). Chengdu:Chinese Institute of Electronics,2018:254-258.) |