@inproceedings{cd81f2754cb44d568d46a91362b5b5a4,
title = "Downlink CRB minimization for near-field integrated sensing and communication",
abstract = "A downlink near-field integrated sensing and communication (ISAC) framework is proposed. A novel double-array structure at the BS is proposed, where an assisting receiver (AR) is attached to the main transmitter (MT) to enable the near-field communication (NFC) system with the ability of target positioning. The joint angle and distance Cram{\'e}r-Rao bound (CRB) is derived and then minimized subject to the communication quality of ser-vice (QoS) requirement and the hybrid-analog-and-digital (HAD) structure constraint. A double-loop iterative algorithm utilizing the penalty dual decomposition (PDD) framework is proposed to tackle the non-convex problem. The numerical results show that: 1) The proposed ISAC system can locate the target in both angle and distance domains; 2) The performance of the HAD ISAC approaches the performance of fully digital (FD) ISAC when the communication QoS requirement is not stringent.",
keywords = "Cram{\'e}r-Rao bound, integrated sensing and communication, near-field communications",
author = "Haochen Li and Zhaolin Wang and Xidong Mu and Yuanwei Liu and Yue Chen and Pan Zhiwen",
year = "2024",
month = aug,
day = "20",
doi = "10.1109/ICC51166.2024.10622244",
language = "English",
isbn = "9781728190556",
series = "IEEE International Conference on Communications",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "903--908",
editor = "Matthew Valenti and David Reed and Melissa Torres",
booktitle = "ICC 2024 - IEEE International Conference on Communications: Proceedings",
address = "United States",
note = "59th Annual IEEE International Conference on Communications, ICC 2024 ; Conference date: 09-06-2024 Through 13-06-2024",
}