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The problem of designing reliable low-cost communications systems to support decentralized algorithms is a major research challenge in self-reconfiguring modular robotics. In this paper we evaluate a communication system based on ZigBee, a wireless ad-hoc mesh networking standard. We present a 15-node system prototype and results from an experiment of 300 trials that measures system performance on...
This paper combines the ZigBee wireless communication system with the Internet system to be the structure of telecare system. The system can serve the careless elders, the disable and the whom live in elderly center, Telecare System not only reduces the service manpower and the cost but also increases the care quality and service efficiency. The telecare system consists of four devices, which are...
2.4 GHz band Zigbee system often works in an indoor environment with the characteristics of dense multipath. When a Zigbee network is formed, the MAI between terminals must be considered, however, the CSMA-CA protocol is employed to avoid the MAI. So both multipath model and MAI model which affected by CSMA-CA should be considered for channel modeling for Zigbee wireless communication system. The...
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