IEEE Signal Processing Magazine最新文献

{"title":"Special Issue on Signal Processing for the Integrated Sensing and Communication Revolution [From the Guest Editors]","authors":"Nuria González-Prelcic;Kumar Vijay Mishra;M. R. Bhavani Shankar;Henk Wymeersch;Athina Petropulu;Pu Perry Wang","doi":"10.1109/MSP.2024.3484708","DOIUrl":"https://doi.org/10.1109/MSP.2024.3484708","url":null,"abstract":"","PeriodicalId":13246,"journal":{"name":"IEEE Signal Processing Magazine","volume":"41 5","pages":"5-7"},"PeriodicalIF":9.4,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10774073","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Truth Is Out There: Cognitive sensing and opportunistic navigation with unknown terrestrial and nonterrestrial signals [Special Issue on Signal Processing for the Integrated Sensing and Communications Revolution]","authors":"Zaher Zak M. Kassas;Mohammad Neinavaie;Joe Khalife;Shaghayegh Shahcheraghi;Joe Saroufim","doi":"10.1109/MSP.2024.3472496","DOIUrl":"https://doi.org/10.1109/MSP.2024.3472496","url":null,"abstract":"There has been significant interest over the past few years in integrated sensing and communication (ISAC) to enable applications, such as the massive Internet of Things, highly automated transportation systems, and military surveillance. Many ISAC studies in the literature considered designing, from scratch, next-generation systems that are endowed with ISAC capabilities. This article argues that “the truth is out there” and that one can sense and exploit unknown signals, whether non-ISAC “legacy” or ISAC devised. The article presents a framework termed \u0000<italic>cognitive sensing and opportunistic navigation</i>\u0000 (\u0000<italic>COSON</i>\u0000). COSON can be thought of as an instantiation of ISAC, but, instead of having the “luxury” of designing signals with ISAC capabilities, COSON senses arbitrary, unknown communication signals and exploits them for positioning, navigation, and timing purposes. COSON is composed of four stages: 1) Blind signal acquisition, which comprises spectrum sensing and signal activity detection, blind beacon estimation, initial Doppler and Doppler rate estimation, and blind source enumeration; 2) blind signal tracking and beacon refinement; 3) interference and multipath classification; and 4) sensing and navigation. Extensive experimental results are presented, demonstrating the broad applicability of COSON to terrestrial and nonterrestrial sources, transmitting with various modulation and multiple access schemes: cellular 4G and 5G signals, GPS, and low-Earth orbit satellite (Starlink, Orbcomm, and Iridium) signals. COSON is demonstrated to localize stationary antennas and navigate unmanned aerial vehicles and a ground vehicle, to meter-level accuracy, without global navigation satellite system signals.","PeriodicalId":13246,"journal":{"name":"IEEE Signal Processing Magazine","volume":"41 5","pages":"87-99"},"PeriodicalIF":9.4,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142761514","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Quantum State Discrimination: A Tutorial on Basic Properties of the Optimal Measurement Matrices [Lecture Notes]","authors":"Petre Stoica;Prabhu Babu;Neel Kanth Kundu","doi":"10.1109/MSP.2024.3457148","DOIUrl":"https://doi.org/10.1109/MSP.2024.3457148","url":null,"abstract":"","PeriodicalId":13246,"journal":{"name":"IEEE Signal Processing Magazine","volume":"41 5","pages":"100-110"},"PeriodicalIF":9.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10769980","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Index Modulation for Integrated Sensing and Communications: A signal processing perspective [Special Issue on Signal Processing for the Integrated Sensing and Communications Revolution]","authors":"Ahmet M. Elbir;Abdulkadir Celik;Ahmed M. Eltawil;Moeness G. Amin","doi":"10.1109/MSP.2024.3444195","DOIUrl":"https://doi.org/10.1109/MSP.2024.3444195","url":null,"abstract":"A joint design of both sensing and communication can lead to substantial enhancement for both subsystems in terms of size and cost as well as spectrum and hardware efficiency. In the last decade, integrated sensing and communications (ISAC) has emerged as a means to efficiently utilize the spectrum on a single and shared hardware platform. Recent studies focused on developing multifunction approaches to share the spectrum between radar sensing and communications. Index modulation (IM) is one particular approach to incorporating information-bearing communication symbols into the emitted radar waveforms. While IM has been well investigated in communications-only systems, the implementation adoption of the IM concept in ISAC has recently attracted researchers to achieve improved energy/spectral efficiency while maintaining satisfactory radar sensing performance. This article focuses on recent studies on IM-ISAC and presents in detail the analytical background and relevance of the major IM-ISAC applications.","PeriodicalId":13246,"journal":{"name":"IEEE Signal Processing Magazine","volume":"41 5","pages":"44-55"},"PeriodicalIF":9.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"From Orthogonal Time–Frequency Space to Affine Frequency-Division Multiplexing: A comparative study of next-generation waveforms for integrated sensing and communications in doubly dispersive channels [Special Issue on Signal Processing for the Integrated Sensing and Communications Revolution]","authors":"Hyeon Seok Rou;Giuseppe Thadeu Freitas de Abreu;Junil Choi;David González G.;Marios Kountouris;Yong Liang Guan;Osvaldo Gonsa","doi":"10.1109/MSP.2024.3422653","DOIUrl":"https://doi.org/10.1109/MSP.2024.3422653","url":null,"abstract":"Next-generation wireless systems will offer integrated sensing and communications (ISAC) functionalities not only in order to enable new applications, but also as a means to mitigate challenges such as doubly-dispersive channels, which arise in high mobility scenarios and/or at millimeter-wave (mmWave) and Terahertz (THz) bands. An emerging approach to accomplish these goals is the design of new waveforms, which draw from the inherent relationship between the doubly-dispersive nature of timevariant (TV) channels and the environmental features of scatterers manifested in the form of multipath delays and Doppler shifts. Examples of such waveforms are the delay-Doppler domain orthogonal time frequency space (OTFS) and the recently proposed chirp domain affine frequency division multiplexing (AFDM), both of which seek to simultaneously combat the detrimental effects of double selectivity and exploit them for the estimation (or sensing) of environmental information. This article aims to provide a consolidated and comprehensive overview of the signal processing techniques required to support reliable ISAC over doubly-dispersive channels in beyond fifth generation (B5G)/sixth generation (6G) systems, with an emphasis on OTFS and AFDM waveforms, as those, together with the traditional orthogonal frequency division multiplexing (OFDM) waveform, suffice to elaborate on the most relevant properties of the trend. The analysis shows that OTFS and AFDM indeed enable significantly improved robustness against inter-carrier interference (ICI) arising from Doppler shifts compared to OFDM. In addition, the inherent delay-Doppler domain orthogonality of the OTFS and AFDM effective channels is found to provide significant advantages for the design and the performance of integrated sensing functionalities.","PeriodicalId":13246,"journal":{"name":"IEEE Signal Processing Magazine","volume":"41 5","pages":"71-86"},"PeriodicalIF":9.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integrating Sensing and Communications: Simultaneously Transmitting and Reflecting Digital Coding Metasurfaces: A successful convergence of physics and signal processsing [Special Issue on Signal Processing for the Integrated Sensing and Communications Revolution]","authors":"Francesco Verde;Vincenzo Galdi;Lei Zhang;Tie Jun Cui","doi":"10.1109/MSP.2024.3471069","DOIUrl":"https://doi.org/10.1109/MSP.2024.3471069","url":null,"abstract":"Wireless networks are undergoing a transformative shift, driven by the crucial factors of cost-effectiveness and sustainability. Digital coding metasurfaces (DCMs) might play a key role in realizing cost-effective digital modulators by harnessing energy embedded in electromagnetic waves traversing through the air. Integrated sensing and communication (ISAC) optimizes power and spectral resources by combining sensing and communication functionalities on a shared hardware platform. This article presents a tutorial-style overview of the applications and advantages of DCMs in ISAC-based networks. Emphasis is placed on the dual functionality of ISAC, necessitating the design of DCMs with simultaneously transmitting and reflecting (STAR) capabilities for comprehensive space control. Additionally, the article explores key signal processing challenges and outlines future research directions stemming from the convergence of ISAC and emerging STAR-DCM technologies.","PeriodicalId":13246,"journal":{"name":"IEEE Signal Processing Magazine","volume":"41 5","pages":"56-70"},"PeriodicalIF":9.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SPS Social Media","authors":"","doi":"10.1109/MSP.2024.3494396","DOIUrl":"https://doi.org/10.1109/MSP.2024.3494396","url":null,"abstract":"","PeriodicalId":13246,"journal":{"name":"IEEE Signal Processing Magazine","volume":"41 5","pages":"4-4"},"PeriodicalIF":9.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10769993","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multicarrier ISAC: Advances in waveform design, signal processing, and learning under nonidealities [Special Issue on Signal Processing for the Integrated Sensing and Communications Revolution]","authors":"Visa Koivunen;Musa Furkan Keskin;Henk Wymeersch;Mikko Valkama;Nuria González-Prelcic","doi":"10.1109/MSP.2024.3420492","DOIUrl":"https://doi.org/10.1109/MSP.2024.3420492","url":null,"abstract":"This paper addresses the topic of integrated sensing and communications (ISAC) in 5G and emerging 6G wireless networks. ISAC systems operate within shared, congested or even contested spectrum, aiming to deliver high performance in both wireless communications and radio frequency (RF) sensing. The expected benefits include more efficient utilization of spectrum, power, hardware (HW) and antenna resources. Focusing on multicarrier (MC) systems, which represent the most widely used communication waveforms, it explores the co-design and optimization of waveforms alongside multiantenna transceiver signal processing for communications and both monostatic and bistatic sensing applications of ISAC. Moreover, techniques of high practical relevance for overcoming and even harnessing challenges posed by non-idealities in actual transceiver implementations are considered. To operate in highly dynamic radio environments and target scenarios, both model-based structured optimization and learning-based methodologies for ISAC systems are covered, assessing their adaptability and learning capabilities under real-world conditions. The paper presents trade-offs in communication-centric and radar-sensing-centric approaches, aiming for an optimized balance in densely used spectrum.","PeriodicalId":13246,"journal":{"name":"IEEE Signal Processing Magazine","volume":"41 5","pages":"17-30"},"PeriodicalIF":9.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Calendar [Dates Ahead]","authors":"","doi":"10.1109/MSP.2024.3484728","DOIUrl":"https://doi.org/10.1109/MSP.2024.3484728","url":null,"abstract":"","PeriodicalId":13246,"journal":{"name":"IEEE Signal Processing Magazine","volume":"41 5","pages":"112-112"},"PeriodicalIF":9.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10769981","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Executive Summary of Our Society’s Strategic Plan [President’s Message]","authors":"Kostas Plataniotis","doi":"10.1109/MSP.2024.3475829","DOIUrl":"https://doi.org/10.1109/MSP.2024.3475829","url":null,"abstract":"","PeriodicalId":13246,"journal":{"name":"IEEE Signal Processing Magazine","volume":"41 5","pages":"3-4"},"PeriodicalIF":9.4,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10770007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142736379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}