Near-Field Integrated Sensing and Communication: Opportunities and Challenges

With the extremely large-scale array (XL-array) deployed in future wireless systems, wireless communication and sensing are expected to operate in the radiative near-field region, which needs to be characterized by the spherical rather than planar wavefronts. Unlike most existing works that considered far-field integrated sensing and communication (ISAC), we study in this article the new near-field ISAC, which integrates both functions of sensing and communication in the near-field region. To this end, we first discuss the appealing advantages of near-field communication and sensing over their far-field counterparts, respectively. Then, we introduce three approaches for near-field ISAC, including joint near-field communication and sensing, sensing-assisted near-field communication, and communication-assisted near-field sensing. We discuss their individual research opportunities and new design issues, as well as propose promising solutions. Finally, several important directions in near-field ISAC are highlighted to motivate future work.

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Publication Details

Journal
IEEE Wireless Communications
Published
2024-09-02
DOI
https://doi.org/10.1109/mwc.002.2400033
Citations
60
Primary Topic
Millimeter-Wave Propagation and Modeling
Type
article
Field-Weighted Citation Impact
12.52

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Near-Field Integrated Sensing and Communication: Opportunities and Challenges

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60 citations
IEEE Wireless Communications
Millimeter-Wave Propagation and Modeling
12.52
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Near-Field Integrated Sensing and Communication: Opportunities and Challenges

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article en
60 citations

Abstract

With the extremely large-scale array (XL-array) deployed in future wireless systems, wireless communication and sensing are expected to operate in the radiative near-field region, which needs to be characterized by the spherical rather than planar wavefronts. Unlike most existing works that considered far-field integrated sensing and communication (ISAC), we study in this article the new near-field ISAC, which integrates both functions of sensing and communication in the near-field region. To this end, we first discuss the appealing advantages of near-field communication and sensing over their far-field counterparts, respectively. Then, we introduce three approaches for near-field ISAC, including joint near-field communication and sensing, sensing-assisted near-field communication, and communication-assisted near-field sensing. We discuss their individual research opportunities and new design issues, as well as propose promising solutions. Finally, several important directions in near-field ISAC are highlighted to motivate future work.

IEEE Wireless CommunicationsVol. 31(6)
University of Science and Technology of China (CN), Chinese University of Hong Kong (HK), Southern University of Science and Technology (CN), Chinese University of Hong Kong, Shenzhen (CN), Peng Cheng Laboratory (CN), Southeast University (CN), University of Hong Kong (HK), South China University of Technology (CN)
National Natural Science Foundation of China, Natural Science Foundation of Guangdong Province, Fundamental Research Funds for the Central Universities
Openalex Percentile: Top 1%
Millimeter-Wave Propagation and Modeling
12.52
DOISourceOpenAlex
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