Coordinated Transmit Beamforming for Multi-antenna Network Integrated Sensing and Communication
Gaoyuan Cheng, Jie Xu

TL;DR
This paper proposes a coordinated transmit beamforming approach for multi-antenna network ISAC systems, optimizing detection probability and communication quality under synchronized and unsynchronized scenarios.
Contribution
It introduces a novel joint detection and beamforming design for synchronized and unsynchronized multi-BS ISAC systems, improving detection performance over benchmarks.
Findings
Synchronization improves detection performance by exploiting more reflected paths.
The proposed beamforming design outperforms benchmark schemes in detection probability.
Optimized beamforming balances detection and communication constraints effectively.
Abstract
This paper studies a multi-antenna network integrated sensing and communication (ISAC) system, in which a set of multi-antenna base stations (BSs) employ the coordinated transmit beamforming to serve their respectively associated single-antenna communication users (CUs), and at the same time reuse the reflected information signals to perform joint target detection. In particular, we consider two target detection scenarios depending on the time synchronization among BSs. In Scenario \uppercase\expandafter{\romannumeral1}, these BSs are synchronized and can exploit the target-reflected signals over both the direct links (from each BS to target to itself) and the cross links (from each BS to target to other BSs) for joint detection. In Scenario \uppercase\expandafter{\romannumeral2}, these BSs are not synchronized and can only utilize target-reflected signals over the direct links for…
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Taxonomy
TopicsDistributed Sensor Networks and Detection Algorithms · Cooperative Communication and Network Coding · Indoor and Outdoor Localization Technologies
