Flowing the Information from Shannon to Fisher: Towards the Fundamental Tradeoff in ISAC

Yifeng XIONG; Fan LIU; Yuanhao CUI; Weijie YUAN; Tony Xiao HAN

doi:10.1109/GLOBECOM48099.2022.10001144

Flowing the Information from Shannon to Fisher: Towards the Fundamental Tradeoff in ISAC

Yifeng XIONG, Fan LIU, Yuanhao CUI, Weijie YUAN, Tony Xiao HAN

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › peer-review

12 Citations (Scopus)

Abstract

Integrated Sensing and Communication (ISAC) is recognized as a promising technology for the next-generation wireless networks. In this paper, we provide a general framework to reveal the fundamental tradeoff between sensing and communications (S&C), where a unified ISAC waveform is exploited to perform dual-functional tasks. In particular, we define the Cramér-Rao bound (CRB)-rate region to characterize the S&C tradeoff, and propose a pentagon inner bound of the region. We show that the two corner points of the CRB-rate region can be achieved by the conventional Gaussian waveform and a novel strategy corresponding to the uniform distribution over the Stiefel manifold, respectively. Moreover, we also offer our insights into transmission approaches achieving the boundary of the CRB-rate region, namely the Shannon-Fisher information flow.

Original language	English
Title of host publication	2022 IEEE Global Communications Conference (GLOBECOM) : Proceedings
Publisher	IEEE
Pages	5601-5606
Number of pages	6
ISBN (Electronic)	9781665435406
ISBN (Print)	9781665435413
DOIs	https://doi.org/10.1109/GLOBECOM48099.2022.10001144
Publication status	Published - 2022
Externally published	Yes
Event	2022 IEEE Global Communications Conference, GLOBECOM 2022 - Virtual, Online, Brazil Duration: 4 Dec 2022 → 8 Dec 2022

Publication series

Name	Proceedings - IEEE Global Communications Conference, GLOBECOM
ISSN (Print)	2334-0983

Conference

Conference	2022 IEEE Global Communications Conference, GLOBECOM 2022
Country/Territory	Brazil
City	Virtual, Online
Period	4/12/22 → 8/12/22

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

Keywords

CRB-rate region
fundamental tradeoff
Integrated sensing and communication
Shannon-Fisher information flow

Access to Document

10.1109/GLOBECOM48099.2022.10001144

Cite this

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title = "Flowing the Information from Shannon to Fisher: Towards the Fundamental Tradeoff in ISAC",

abstract = "Integrated Sensing and Communication (ISAC) is recognized as a promising technology for the next-generation wireless networks. In this paper, we provide a general framework to reveal the fundamental tradeoff between sensing and communications (S&C), where a unified ISAC waveform is exploited to perform dual-functional tasks. In particular, we define the Cram{\'e}r-Rao bound (CRB)-rate region to characterize the S&C tradeoff, and propose a pentagon inner bound of the region. We show that the two corner points of the CRB-rate region can be achieved by the conventional Gaussian waveform and a novel strategy corresponding to the uniform distribution over the Stiefel manifold, respectively. Moreover, we also offer our insights into transmission approaches achieving the boundary of the CRB-rate region, namely the Shannon-Fisher information flow.",

keywords = "CRB-rate region, fundamental tradeoff, Integrated sensing and communication, Shannon-Fisher information flow",

author = "Yifeng XIONG and Fan LIU and Yuanhao CUI and Weijie YUAN and HAN, {Tony Xiao}",

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year = "2022",

doi = "10.1109/GLOBECOM48099.2022.10001144",

language = "English",

isbn = "9781665435413",

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XIONG, Y, LIU, F, CUI, Y, YUAN, W & HAN, TX 2022, Flowing the Information from Shannon to Fisher: Towards the Fundamental Tradeoff in ISAC. in 2022 IEEE Global Communications Conference (GLOBECOM) : Proceedings. Proceedings - IEEE Global Communications Conference, GLOBECOM, IEEE, pp. 5601-5606, 2022 IEEE Global Communications Conference, GLOBECOM 2022, Virtual, Online, Brazil, 4/12/22. https://doi.org/10.1109/GLOBECOM48099.2022.10001144

Flowing the Information from Shannon to Fisher: Towards the Fundamental Tradeoff in ISAC. / XIONG, Yifeng; LIU, Fan; CUI, Yuanhao et al.
2022 IEEE Global Communications Conference (GLOBECOM) : Proceedings. IEEE, 2022. p. 5601-5606 (Proceedings - IEEE Global Communications Conference, GLOBECOM).

Research output: Book Chapters | Papers in Conference Proceedings › Conference paper (refereed) › Research › peer-review

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AU - CUI, Yuanhao

AU - YUAN, Weijie

AU - HAN, Tony Xiao

PY - 2022

Y1 - 2022

N2 - Integrated Sensing and Communication (ISAC) is recognized as a promising technology for the next-generation wireless networks. In this paper, we provide a general framework to reveal the fundamental tradeoff between sensing and communications (S&C), where a unified ISAC waveform is exploited to perform dual-functional tasks. In particular, we define the Cramér-Rao bound (CRB)-rate region to characterize the S&C tradeoff, and propose a pentagon inner bound of the region. We show that the two corner points of the CRB-rate region can be achieved by the conventional Gaussian waveform and a novel strategy corresponding to the uniform distribution over the Stiefel manifold, respectively. Moreover, we also offer our insights into transmission approaches achieving the boundary of the CRB-rate region, namely the Shannon-Fisher information flow.

AB - Integrated Sensing and Communication (ISAC) is recognized as a promising technology for the next-generation wireless networks. In this paper, we provide a general framework to reveal the fundamental tradeoff between sensing and communications (S&C), where a unified ISAC waveform is exploited to perform dual-functional tasks. In particular, we define the Cramér-Rao bound (CRB)-rate region to characterize the S&C tradeoff, and propose a pentagon inner bound of the region. We show that the two corner points of the CRB-rate region can be achieved by the conventional Gaussian waveform and a novel strategy corresponding to the uniform distribution over the Stiefel manifold, respectively. Moreover, we also offer our insights into transmission approaches achieving the boundary of the CRB-rate region, namely the Shannon-Fisher information flow.

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Flowing the Information from Shannon to Fisher: Towards the Fundamental Tradeoff in ISAC

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