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High physical, psychological and economic cost of sports injuries are the reason that lead to the recognition of a need for having a system to monitor health parameters of a professional athlete hence preventing incidences of severe injuries. Athletes in any sports can greatly benefit from feedback from the systems for improving the quality of their training. In this paper, we present architecture...
During the last years Wireless Sensor Network (WSN) technologies have been increasingly adopted and utilized as a prominent communication infrastructure in highly demanding application scenarios. However, in order to cope with the diverse and dynamic requirements of such cases in real deployment critical challenges must be addressed mainly stemming from the scarce resource availability characterizing...
Quality of Service (QoS) provisioning in Wireless Sensor Networks (WSNs) presents an open research issue within the scientific community because the rapid development of microelectronics proliferates new applications for WSNs. These applications often require a connection of end-to-end delay and high reliability for various communication models. Within this scope, a special class of WSNs are query...
Wireless Sensor Networks (WSNs) constitute a networking area with promising impact in the environment, health, security, industrial applications and more. Each of these presents different requirements, regarding system performance and QoS, and involves a variety of mechanisms such as routing and MAC protocols, algorithms, scheduling policies, security, OS, all of which are residing over the HW, the...
This paper presents the basic data flow in a wireless sensor network based on the current literature of the area. The first step is to study exactly how information and different data move in a system like this. Various frameworks have been proposed to represent data move from one layer to another, in order to reach the end-user. After introducing the basic parts of a sensor network in section 1,...
Possibilities and way to design and implement a ZigBee-based data transmission and monitoring wireless smart sensor network integrated with the Internet are considered and described in the paper. Implementing of a cost-effective such system requires the use and integration of different hardware elements and programming languages. Possibilities and key aspects of smart sensor nodes are considered and...
This paper presents a prototype indoor navigation system for the blind based on wireless sensor network coupled with a haptic feedback glove. The system uses Received Signal Strength Indicator (RSSI) to continuously triangulate the position of the Vision Impaired (VI) person. A number of most relevant destinations can be assigned to pushbuttons on a haptic glove. Upon receiving input from the user...
Significant advances in various Wireless Sensor Network (WSN) domains during the last years have highlighted the trend of utilizing respective implementations in increasingly demanding applications. Towards such objective, extreme energy limitation comprises probably the most notorious challenge engineers must tackle. In that respect, optimal energy management emerges as critical objective. However,...
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