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arXiv · 2503.20617

Impact of Network-Controlled Repeaters in Integrated Sensing and Communication Systems

Henrik Åkesson·Diana P. M. Osorio·Erik G. Larsson
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Abstract

Integrating sensing capabilities into existing massive MIMO communication networks has become crucial, stemming from a need for a more interconnected society. Improved coverage and performance can be obtained by incorporating new network components, such as reconfigurable intelligent surfaces or network-controlled repeaters (NCR). Integrating such components into modern networks brings a number of challenges. Thus, this paper contributes with the analysis of NCR impact in integrated sensing and communication networks. Particularly, the Cramér-Rao bound for a range estimator is derived where the interference from the repeater is taken into consideration. Additionally, a joint procedure for determining the repeater amplification factor, along with the precoders of the transmitting access point, is proposed.

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Henrik Åkesson, Diana P. M. Osorio, Erik G. Larsson. 2025-03-26. Impact of Network-Controlled Repeaters in Integrated Sensing and Communication Systems. https://arxiv.org/abs/2503.20617

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