Secondary User Power Detection Based on UTAMP

Integrated sensing and communication (ISAC) refers to a new information processing technology that achieves collaborative sensing and communication functions based on resource or information sharing between software and hardware. Wireless sensing technology is an important foundation for communication-aware sensing integration. This paper utilizes passive sensing technology, where the sensing nodes perceive and detect secondary users (SUs). The sensing nodes use the unitary transformation approximate message passing (UTAMP) algorithm to recover the received signal power sent by SUs, enabling detection of SUs. Simulation results demonstrate that the proposed algorithm has good detection performance, and complexity analysis of this method is conducted. But as no other papers have previously researched similar methods, there are no comparison methods.