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In this paper, the authors present a Node Management Entity (NME) and a Hub Management Entity (HME) architectures based on the Wireless Body Area Network (WBAN) standard. The proposed HME and NME combine cross and modular design architecture to ensure network reliability and enhance the WBAN Quality of Service (QoS). Furthermore, the authors propose an Adaptive Two-hop Routing protocol, termed ATR, a simple but yet efficient algorithm to provide reliable data dissemination in WBANs. The proposed ATR is evaluated under layered architecture and NME and HME entities. Simulation results show that both entities perform well 802.15. 6 standard and WBAN QoS requirements than layered architecture.