Frozen Watermark-Based Federated Learning with Incentive Mechanism for Electric Vehicle Suspensions in Vehicular Communication Systems. - Libo Shi; Qin Wang 002; Haitao Zhao 004; Yusiqing Hu; Ying Zhang; Yujia Qi; Xiuqing Ye; Hongbo Zhu 002 (VTC2025-Spring, 2025)