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arXiv · 2601.10538

Network Integrated Sensing and Communication

Edward Andrews·Lawrence Ong·Duy T. Ngo·Yao Liu·Min Li
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Abstract

Integrated sensing and communication (ISAC) is a cornerstone technology for 6G networks, offering unified support for high-rate communication and high-accuracy sensing. While existing literature extensively covers link-level designs, the transition toward large-scale deployment necessitates a fundamental understanding of network-level performance. This paper investigates a network ISAC model where a source node communicates with a destination via a relay network, while intermediate nodes concurrently perform cooperative sensing over specific spatial regions. We formulate a novel optimization framework that captures the interplay between multi-node routing and sensing coverage. For a one-dimensional path network, we provide an analytical characterization of the complete sensing-throughput region. Extending this to general network topologies, we establish that the sensing-throughput Pareto boundary is piecewise linear and provide physical interpretations for each segment. Our results reveal the fundamental trade-offs between sensing coverage and communication routing, offering key insights for the design of future 6G heterogeneous networks.

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Edward Andrews, Lawrence Ong, Duy T. Ngo, Yao Liu, Min Li. 2026-01-15. Network Integrated Sensing and Communication. https://arxiv.org/abs/2601.10538

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