Di Wu;Tong Shen;Feng Shu;Yuanyuan Wu;Lingling Zhu;Siling Feng;Mengxing Huang;Jiangzhou Wang
{"title":"Secure Hybrid Analog and Digital Beamforming for mmWave XR Communications With Mixed-DAC","authors":"Di Wu;Tong Shen;Feng Shu;Yuanyuan Wu;Lingling Zhu;Siling Feng;Mengxing Huang;Jiangzhou Wang","doi":"10.1109/JSTSP.2023.3298474","DOIUrl":null,"url":null,"abstract":"To achieve a balance between performance and implementation complexity in extended reality (XR)-aided millimeter wave (mmWave) communication, secure hybrid digital and analog (HDA) beamforming with mixed digital-to-analog converters (DACs) is established by partially replacing costly full-resolution DACs with some cheap low-resolution DACs. We focus on secure HDA beamforming for such a system. Furthermore, XR technology is aided to improve the operating efficiency in this complex scenario. First, a closed-form approximation of the average secrecy rate (ASR) is derived. To maximize ASR with partial eavesdropping channel knowledge available, we propose an algorithm of skillfully utilizing the alternating iteration to design beamformers of analog, confidential message (CM) and artificial noise (AN). Given the analog and CM/AN beamformers, the updated AN/CM beamformer is addressed by a gradient descent algorithm. Then, given the beamformers of CM and AN, Dinkelbach and Majorization-Minimization are combined to optimize analog beamformer. Simulation results show that the proposed algorithm achieves much better ASR performance than existing methods in the medium and high signal-to-noise ratio regions.","PeriodicalId":13038,"journal":{"name":"IEEE Journal of Selected Topics in Signal Processing","volume":null,"pages":null},"PeriodicalIF":8.7000,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Journal of Selected Topics in Signal Processing","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10192330/","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
To achieve a balance between performance and implementation complexity in extended reality (XR)-aided millimeter wave (mmWave) communication, secure hybrid digital and analog (HDA) beamforming with mixed digital-to-analog converters (DACs) is established by partially replacing costly full-resolution DACs with some cheap low-resolution DACs. We focus on secure HDA beamforming for such a system. Furthermore, XR technology is aided to improve the operating efficiency in this complex scenario. First, a closed-form approximation of the average secrecy rate (ASR) is derived. To maximize ASR with partial eavesdropping channel knowledge available, we propose an algorithm of skillfully utilizing the alternating iteration to design beamformers of analog, confidential message (CM) and artificial noise (AN). Given the analog and CM/AN beamformers, the updated AN/CM beamformer is addressed by a gradient descent algorithm. Then, given the beamformers of CM and AN, Dinkelbach and Majorization-Minimization are combined to optimize analog beamformer. Simulation results show that the proposed algorithm achieves much better ASR performance than existing methods in the medium and high signal-to-noise ratio regions.
期刊介绍:
The IEEE Journal of Selected Topics in Signal Processing (JSTSP) focuses on the Field of Interest of the IEEE Signal Processing Society, which encompasses the theory and application of various signal processing techniques. These techniques include filtering, coding, transmitting, estimating, detecting, analyzing, recognizing, synthesizing, recording, and reproducing signals using digital or analog devices. The term "signal" covers a wide range of data types, including audio, video, speech, image, communication, geophysical, sonar, radar, medical, musical, and others.
The journal format allows for in-depth exploration of signal processing topics, enabling the Society to cover both established and emerging areas. This includes interdisciplinary fields such as biomedical engineering and language processing, as well as areas not traditionally associated with engineering.