Integrating Sensing and Communications for Ubiquitous IoT: Applications, Trends, and Challenges

Cui, Yuanhao; Fan, Liu; Jing, Xiaojun; Mu, Junsheng

doi:10.1109/mnet.010.2100152

Cited by 437 publications

(191 citation statements)

References 14 publications

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“…Recently, the communication community has been highly active in promoting JCAS. In fact, given its potential in improving the cost-/energy-/spectral-efficiency and in substantially benefiting emerging use cases of mobile networks, e.g., smart home/city/ transportation [25], JCAS has been envisioned as a hallmark technology of the future sixth generation mobile communications (6G) [26]. The communication-centric JCAS designs in the communication community generally fall into two broad categories: general designs and communication standards-based ones.…”

Section: Background and Motivationmentioning

confidence: 99%

Joint Communications and Sensing Employing Multi- or Single-Carrier OFDM Communication Signals: A Tutorial on Sensing Methods, Recent Progress and a Novel Design

Zhang

Huang

et al. 2022

Sensors

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Joint communications and sensing (JCAS) has recently attracted extensive attention due to its potential in substantially improving the cost, energy and spectral efficiency of Internet of Things (IoT) systems that need both radio frequency functions. Given the wide applicability of orthogonal frequency division multiplexing (OFDM) in modern communications, OFDM sensing has become one of the major research topics of JCAS. To raise the awareness of some critical yet long-overlooked issues that restrict the OFDM sensing capability, a comprehensive overview of OFDM sensing is provided first in this paper, and then a tutorial on the issues is presented. Moreover, some recent research efforts for addressing the issues are reviewed, with interesting designs and results highlighted. In addition, the redundancy in OFDM sensing signals is unveiled, on which, a novel method is based and developed in order to remove the redundancy by introducing efficient signal decimation. Corroborated by analysis and simulation results, the new method further reduces the sensing complexity over one of the most efficient methods to date, with a minimal impact on the sensing performance.

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Section: Background and Motivationmentioning

confidence: 99%

Joint Communications and Sensing Employing Multi- or Single-Carrier OFDM Communication Signals: A Tutorial on Sensing Methods, Recent Progress and a Novel Design

Zhang

Huang

et al. 2022

Sensors

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“…Integrated sensing and communication (ISAC) can complement existing wireless communication commodity by building-in sensing functionality [2]. As such, wireless devices are able to jointly meet the requirements of sensing and communications, by exploring and balancing all dimensional (spatial/time/frequency) wireless resources, rather than only the standardized pilot structure [3].…”

Section: Introductionmentioning

confidence: 99%

Integrated Human Activity Sensing and Communications

Li¹,

Cui²,

Zhang³

et al. 2022

Preprint

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Advance in wireless communication and signal processing facilitates integrated sensing and communication (ISAC)a technology that combines sensing and communication functionalities to efficiently utilize congested wireless/hardware resources, and to pursue mutual benefits. Consequently, the future communications network will be perceptive. In this article, we provide a review of human-related sensing in the context of ISAC. We first present a general ISAC receiver signal processing framework, with a focus on human activity recognition (HAR). Based on geographical deployments, we then categorize current ISAC HAR into three classical configurations, namely monostatic, bistatic and distributed deployments, and discuss their properties, critical research problems and solutions. In order to facilitate system realization and improve the recognition performance, we further explore inherent connections between physical-layer system parameters and HAR performance metrics. Finally, we review major technical challenges and identify key open research problems.

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“…It is foreseeable, in fact, that future networks will go beyond classical communication and provide a sensing functionality to measure the surrounding environment [ 26 , 27 ]. This motivates the recent research theme of Integrated Sensing and Communications (ISAC) [ 28 ], which however concerns radiofrequency communications and radar systems. In fact, ISAC was first implemented over a missile range instrumentation radar via pulse interval modulation, where information was embedded into a group of radar pulses [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

“…Such systems are defined by different names, e.g., joint radar and communication or dual-functional radar-communications [ 30 ]. The sensing functionality in these systems mainly refers to radar sensing since, as a major representative of sensing technologies, radar’s development has been profoundly affected by wireless communications, and vice versa [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Acoustic Dual-Function Communication and Echo-Location in Inaudible Band

Allegro

Fascista

Coluccia

2022

Sensors

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Acoustic communications are experiencing renewed interest as alternative solutions to traditional RF communications, not only in RF-denied environments (such as underwater) but also in areas where the electromagnetic (EM) spectrum is heavily shared among several wireless systems. By introducing additional dedicated channels, independent from the EM ones, acoustic systems can be used to ensure the continuity of some critical services such as communication, localization, detection, and sensing. In this paper, we design and implement a novel acoustic system that uses only low-cost off-the-shelf hardware and the transmission of a single, suitably designed signal in the inaudible band (18–22 kHz) to perform integrated sensing (ranging) and communication. The experimental testbed consists of a common home speaker transmitting acoustic signals to a smartphone, which receives them through the integrated microphone, and of an additional receiver exploiting the same signals to estimate distance information from a physical obstacle in the environment. The performance of the proposed dual-function system in terms of noise, data rate, and accuracy in distance estimation is experimentally evaluated in a real operational environment.

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Integrating Sensing and Communications for Ubiquitous IoT: Applications, Trends, and Challenges

Cited by 437 publications

References 14 publications

Joint Communications and Sensing Employing Multi- or Single-Carrier OFDM Communication Signals: A Tutorial on Sensing Methods, Recent Progress and a Novel Design

Joint Communications and Sensing Employing Multi- or Single-Carrier OFDM Communication Signals: A Tutorial on Sensing Methods, Recent Progress and a Novel Design

Integrated Human Activity Sensing and Communications

Acoustic Dual-Function Communication and Echo-Location in Inaudible Band

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