Hybrid Uplink Transmission for Joint Localization and Communication Network: Power and Subcarrier Allocation Scheme

The rapid development of communication systems has aroused the expectation of providing localization and communication services simultaneously. In this letter, a hybrid uplink transmission for joint localization and communication (JLC) networks is studied. First, the closed-form expressions of Crámer–Rao lower bound (CRLB) of the localization estimation error are derived for the first time, providing a metric for evaluating the localization performance. Then, a joint power and subcarrier allocation problem for uplink JLC networks is formulated. An alternative algorithm is proposed to solve the mixed integer nonlinear programming (MINLP) problem based on majorization-minimization (MM) and sequential parametric convex approximation (SPCA) methods. Simulation results are presented to verify the effectiveness of the proposed algorithm.