Revealing the Impact of Beamforming in ISAC

Autor:	Ouyang, Chongjun, Liu, Yuanwei, Zhang, Xingqi
Rok vydání:	2023
Předmět:	Computer Science - Information Theory Electrical Engineering and Systems Science - Signal Processing 94A05
Druh dokumentu:	Working Paper
Popis:	This letter proposes advanced beamforming design and analyzes its influence on the sensing and communications (S&C) performance for a multiple-antenna integrated S&C (ISAC) system with a single communication user and a single target. Novel closed-form beamformers are derived for three typical scenarios, including the sensing-centric design, communications-centric design, and Pareto optimal design. Regarding each scenario, the outage probability, ergodic communication rate (CR), and sensing rate (SR) are analyzed to derive the diversity orders and high signal-to-noise ratio slopes. Numerical results are provided to demonstrate that i) beamforming design can affect the high-SNR power offset and diversity order but does not influence the high-SNR slope; ii) ISAC exhibits larger high-SNR slopes and a more extensive SR-CR region than conventional frequency-division S&C (FDSAC) techniques. Comment: 5 pages
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2307.15023 Zobrazit plný text záznamu View this record from Arxiv