期刊名称：International Journal of Advances in Engineering and Management
电子版ISSN：2395-5252
出版年度：2021
卷号：3
期号：5
页码：935-938
DOI：10.35629/5252-0305821827
语种：English
出版社：IJAEM JOURNAL
摘要：The Physical-layer key generation (PKG) based on channel reciprocity establish secret keys between devices. The fifth generation (5G) wireless communications employ massive multiple-input multiple-output (MIMO) to, support multiple users simultaneously. It presents a multiuser secret key, generation in massive MIMO wireless networks. This channel model analyze, the secret key rate and derive a closed-form expression under independent channel conditions. The proposed optimization design can significantly reduce the pilot overhead of the reciprocal channel state information acquisition. The channel gains from different transmit directions to different receive directions. To maximize the sum secret key rate, provide the optimal conditions for the Kronecker product of the precoding and receiving matrices and propose an algorithm to generate these matrices with pilot reuse. The proposed optimization design can significantly reduce the pilot overhead of the reciprocal channel state information acquisition.
