Soo Yong LimIrfan Farhan Mohamad RafieSoo Qi PingZhengqing YunMagdy F. Iskander2024-12-262024-12-2620249783031398230978303139824710.1007/978-3-031-39824-7_11https://dspace-cris.utar.edu.my/handle/123456789/7994Models of Radio Propagation in Indoor/Outdoor Environments: Past Efforts and Future Challengesbook-chapter