An ADMM Approache for PAPR Reduction in Multi-Receiver MISO-OFDM Fuze

• Published in: IEEE International Conference on Electronic Information and Communication Technology (Online) pp. 788 - 793
• Main Authors: Li, Jiabao, Qin, Yuanyuan
• Format: Conference Proceeding
• Language: English
• Published: IEEE 31.07.2024
• Subjects: alternating direction method of multipliers (ADMM); Approximation algorithms; constructive interference (CI); Convex functions; Fuses; Interference; Peak to average power ratio; peak-to-average power ratio (PAPR); Receiving antennas; Transmitting antennas
• ISSN: 2836-7782
• DOI: 10.1109/ICEICT61637.2024.10670756

This paper propose a low-complexity solution for peak-to-average power ratio (PAPR) reduction in multi-receiver MISO-OFDM fuze based on the alternating direction method of multipliers (ADMM). Specifically, we study on an optimization problem aimed at minimizing the total transmit power subject to constructive interference (CI) realization and per-antenna PAPR restriction. To obtain the approximate optimal solution efficiently, a corresponding low-complexity ADMM algorithm is derived. Then we show that, in the proposed ADMM algorithm, the computational complexity in each iteration is roughly on the order of \mathbb{O}\left({K{N^3} + KMN}\right), where K, M, N are the number of receivers, transmit antennas and subcarriers respectively. Numerical results validate that the proposed low-complexity algorithm achieves enhanced performance over the existing methods in terms of total transmit power, PAPR and computation complexity.