Integrated sensing and communication in distributed antenna networks

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

3 Scopus Citations
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Author(s)

  • Dongfang Xu
  • Ata Khalili
  • Xianghao Yu
  • Derrick Wing Kwan Ng
  • Robert Schober

Related Research Unit(s)

Detail(s)

Original languageEnglish
Title of host publication2023 IEEE International Conference on Communications Workshops (ICC Workshops)
PublisherInstitute of Electrical and Electronics Engineers, Inc.
Pages1457-1462
ISBN (electronic)979-8-3503-3307-7
ISBN (print)979-8-3503-3308-4
Publication statusPublished - 2023

Publication series

Name
ISSN (Print)2164-7038
ISSN (electronic)2694-2941

Conference

Title58th IEEE International Conference on Communications (ICC 2023)
LocationLa Nuvola Convention Center
PlaceItaly
CityRome
Period28 May - 1 June 2023

Abstract

In this paper, we investigate the resource allocation design for integrated sensing and communication (ISAC) in distributed antenna networks (DANs). In particular, coordinated by a central processor (CP), a set of remote radio heads (RRHs) provide communication services to multiple users and sense several target locations within an ISAC frame. To avoid severe interference between the information transmission and the radar echo, we propose to divide the ISAC frame into a communication phase and a sensing phase. During the communication phase, the data signal is generated at the CP and then conveyed to the RRHs via fronthaul links. As for the sensing phase, based on pre-determined RRH-target pairings, each RRH senses a dedicated target location with a synthesized highly-directional beam and then transfers the samples of the received echo to the CP via its fronthaul link for further processing of the sensing information. Taking into account the limited fronthaul capacity and the quality-of-service requirements of both communication and sensing, we jointly optimize the durations of the two phases, the information beamforming, and the covariance matrix of the sensing signal for minimization of the total energy consumption over a given finite time horizon. To solve the formulated non-convex design problem, we develop a low-complexity alternating optimization algorithm which converges to a suboptimal solution. Simulation results show that the proposed scheme achieves significant energy savings compared to the two baseline schemes. Moreover, our results reveal that for efficient ISAC in wireless networks, energy-focused short-duration pulses are favorable for sensing while low-power long-duration signals are preferable for communication. © 2023 IEEE.

Bibliographic Note

Research Unit(s) information for this publication is provided by the author(s) concerned.

Citation Format(s)

Integrated sensing and communication in distributed antenna networks. / Xu, Dongfang; Khalili, Ata; Yu, Xianghao et al.
2023 IEEE International Conference on Communications Workshops (ICC Workshops). Institute of Electrical and Electronics Engineers, Inc., 2023. p. 1457-1462.

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review