“…Thus, patients would prefer non-image UHC devices because of privacy, convenience, and cost of equipment [9]. Requirements of UHC in relation to rehabilitation are expanded by the concept of homecare personal area networks that provide ambulatory monitoring and supporting hospital functions by using ad hoc or body area networks [10,11,12,13,14,15,16,17,18]. In the past decade, wireless sensor networks (WSNs) have been gradually deployed and applied to detect various physiological signals because of micro-electro-mechanical system (MEMS), integrated circuits (IC), and rapid advances in radio frequency (RF) [19,20].…”