VP-PPO: Real-Time Learning-Based Vector Perturbation Precoding for O-RAN Cell-Free Massive MIMO Networks
Cell-Free (CF) massive Multiple-Input Multiple Output (MIMO) networks are a key enabler for future sixth generation wireless systems, as they allow distributed Radio Units (RUs) to cooperatively serve users and mitigate inter-user interference. However, under dense deployments and high spatial loading, conventional lin...