WCSP is an annual International Conference on Wireless Communications and Signal Processing (WCSP). The aim of the conference is to provide an international forum that brings together researchers from academia and practitioners from industry to exchange advances in recent research work on all aspects of wireless communications and signal processing. With the support of all participants, the past seventeen events of the conference have been very successful. We are now organizing WCSP 2026, the eighteenth edition of the conference. You are cordially welcome to participate in and contribute to the conference in your valuable role.