Wireless powered integrated sensing and communication (ISAC) faces a fundamental tradeoff between energy supply, communication throughput, and sensing accuracy. This paper investigates a wireless powered ISAC system with target localization requirements, where users harvest energy from wireless power transfer (WPT) and then conduct ISAC transmissions in a time-division manner. In addition to energy supply, the WPT signal also contributes to target sensing, and the localization accuracy is characterized by Cram\'er-Rao bound (CRB) constraints. Under this setting, we formulate a max-min throughput maximization problem by jointly allocating the WPT duration, ISAC transmission time allocation, and transmit power. Due to the nonconvexity of the resulting problem, a suitable reformulation is developed by exploiting variable substitutions and the monotonicity of logarithmic functions, based on which an efficient successive convex approximation (SCA)-based iterative algorithm is proposed. Simulation results demonstrate convergence and significant performance gains over benchmark schemes, highlighting the importance of coordinated time-power optimization in balancing sensing accuracy and communication performance in wireless powered ISAC systems.
@article{arxiv.2512.24815,
title = {Efficient Joint Resource Allocation for Wireless Powered ISAC with Target Localization},
author = {Boyao Li and Qinwei He and Boao Zhang and Xiaopeng Yuan and Anke Schmeink},
journal= {arXiv preprint arXiv:2512.24815},
year = {2026}
}
Comments
Accepted for publication at the IEEE ICC 2026 Workshop WS-12: 5th Workshop on Synergies of Communication, Localization, and Sensing towards 6G