eprintid: 10191484
rev_number: 7
eprint_status: archive
userid: 699
dir: disk0/10/19/14/84
datestamp: 2024-05-01 13:14:47
lastmod: 2025-02-13 09:54:01
status_changed: 2024-05-01 13:14:47
type: article
metadata_visibility: show
sword_depositor: 699
creators_name: Li, Yunxin
creators_name: Liu, Fan
creators_name: Du, Zhen
creators_name: Yuan, Weijie
creators_name: Shi, Qingjiang
creators_name: Masouros, Christos
title: Frame Structure and Protocol Design for Sensing-Assisted NR-V2X Communications
ispublished: pub
divisions: UCL
divisions: B04
divisions: C05
divisions: F46
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher's terms and conditions.
abstract: The emergence of the fifth-generation (5G) New Radio (NR) technology has provided unprecedented opportunities for vehicle-to-everything (V2X) networks, enabling enhanced quality of services. However, high-mobility V2X networks require frequent handovers and acquiring accurate channel state information (CSI) necessitates the utilization of pilot signals, leading to increased overhead and reduced communication throughput. To address this challenge, integrated sensing and communications (ISAC) techniques have been employed at the base station (gNB) within vehicle-to-infrastructure (V2I) networks, aiming to minimize overhead and improve spectral efficiency. In this study, we propose novel frame structures that incorporate ISAC signals for three crucial stages in the NR-V2X system: initial access, connected mode, and beam failure and recovery. These new frame structures employ 75% fewer pilots and reduce reference signals by 43.24%, capitalizing on the sensing capability of ISAC signals. Through extensive link-level simulations, we demonstrate that our proposed approach enables faster beam establishment during initial access, higher throughput and more precise beam tracking in connected mode with reduced overhead, and expedited detection and recovery from beam failures. Furthermore, the numerical results obtained from our simulations showcase enhanced spectrum efficiency, improved communication performance and minimal overhead, validating the effectiveness of the proposed ISAC-based techniques in NR V2I networks.
date: 2024-12
date_type: published
publisher: Institute of Electrical and Electronics Engineers (IEEE)
official_url: http://dx.doi.org/10.1109/tmc.2024.3389697
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2271183
doi: 10.1109/tmc.2024.3389697
lyricists_name: Masouros, Christos
lyricists_id: CMASO14
actors_name: Flynn, Bernadette
actors_id: BFFLY94
actors_role: owner
full_text_status: public
publication: IEEE Transactions on Mobile Computing
volume: 23
number: 12
pagerange: 11045 -11060
issn: 1536-1233
citation:        Li, Yunxin;    Liu, Fan;    Du, Zhen;    Yuan, Weijie;    Shi, Qingjiang;    Masouros, Christos;      (2024)    Frame Structure and Protocol Design for Sensing-Assisted NR-V2X Communications.                   IEEE Transactions on Mobile Computing , 23  (12)   11045 -11060.    10.1109/tmc.2024.3389697 <https://doi.org/10.1109/tmc.2024.3389697>.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10191484/1/Frame_Structure_and_Protocol_Design_for_Sensing-Assisted_NR-V2X_Communications.pdf