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Computer Science > Information Theory

arXiv:2307.11337 (cs)
[Submitted on 21 Jul 2023]

Title:Fundamental CRB-Rate Tradeoff in Multi-Antenna ISAC Systems with Information Multicasting and Multi-Target Sensing

Authors:Zixiang Ren, Yunfei Peng, Xianxin Song, Yuan Fang, Ling Qiu, Liang Liu, Derrick Wing Kwan Ng, Jie Xu
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Abstract:This paper investigates the performance tradeoff for a multi-antenna integrated sensing and communication (ISAC) system with simultaneous information multicasting and multi-target sensing, in which a multi-antenna base station (BS) sends the common information messages to a set of single-antenna communication users (CUs) and estimates the parameters of multiple sensing targets based on the echo signals concurrently. We consider two target sensing scenarios without and with prior target knowledge at the BS, in which the BS is interested in estimating the complete multi-target response matrix and the target reflection coefficients/angles, respectively. First, we consider the capacity-achieving transmission and characterize the fundamental tradeoff between the achievable rate and the multi-target estimation Cramér-Rao bound (CRB) accordingly.
Comments: 32 pages
Subjects: Information Theory (cs.IT); Signal Processing (eess.SP)
Cite as: arXiv:2307.11337 [cs.IT]
  (or arXiv:2307.11337v1 [cs.IT] for this version)
  https://doi.org/10.48550/arXiv.2307.11337

Submission history

From: Zixiang Ren [view email]
[v1] Fri, 21 Jul 2023 04:03:15 UTC (617 KB)
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