%0 Journal Article %T A Distributed Continua AHD System with ZigBee/PAN-IF Gateway and Continua QoS Control Mechanism %A Yung-Shun Huang %A Min Shih %A Yio-Wha Shau %A William T. Lin %J Journal of Sensor and Actuator Networks %D 2012 %I MDPI AG %R 10.3390/jsan1020097 %X In a residential or nursing home environment, using ZigBee/802.15.4 wireless network specifically to collect and gather various types of personal health data proves to be a feasible choice. The Continua Guidelines has defined both the sensor-LAN IF (sensor Local Area Network Interface) PHD (Personal Health Device) and PAN IF (Personal Area Network Interface) PHD, but only a Continua certified sensor-LAN IF PHD with Zigbee HC (Health Care) profile can connect with Continua AHD (Application Hosting Device) through Zigbee/802.15.4 network and allows data communicating between AHD and PHDs. In this paper, we present a distributed Continua AHD system design that divides the AHD device containing Continua PAN IF into Continua AHD Host and Continua AHD Gateway with communication through ZigBee/802.15.4 network. Under this structure, a Continua PHD connects with a Continua AHD Host through Continua AHD Gateway within ZigBee/802.15.4 network. One immediate advantage of the proposed system is that both of the Continua sensor-LAN IF and PAN IF PHDs can connect with Continua AHD (Host) through ZigBee/802.15.4 network. To further address the QoS (Quality of Service) issue for Continua PAN IF message transmission in a ZigBee network, we present a software approach to automatically determine the types of packet transmitted and execute Continua QoS control. Together with the QoS mechanism in the enhanced ZigBee MAC Layer, this approach realizes a complete Continua QoS control mechanism for the distributed AHD system. %K Application Hosting Device (AHD) %K Personal Health Device (PHD) %K Personal Area Network (PAN) %K Distributed AHD system %K Continua certified system %K Connected Health %K Quality of Service (QoS) %K ZigBee %K ISO/IEEE 11073 %U http://www.mdpi.com/2224-2708/1/2/97