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Citations
... Therefore, dynamic priority policy and priority aware system design and network models need to be developed for recent and future hospital care system. This article is the continuation of previously proposed CogMed, where the wireless medical devices are suggested to CR functionality enabled and devices are classified according to medical urgency and location of hospital [7][8]. This paper proposes a device based medical priority access mechanism policy similar to IEEE 802.11e and IETF RFC 2309 based medical data scheduling mechanism. ...
... A cognitive radio based healthcare system known CogMed has been proposed where different type of cognitive radio enabled medical and non-medical devices [7,8]. In this article, priority scheme is proposed for medical and non-medical device based on queuing theory and access mechanism similar with IEEE 802.11e. ...
Due to rapid growth of wireless medical devices, in near future wireless healthcare services may face some inescapable issues such as medical spectrum scarcity, electromagnetic interference (EMI) to bio-medical devices, bandwidth constrain, security and finally medical data transmission reliability, etc. To mitigate these issues, cognitive radio needs to be utilized and fine-tuned the upcoming wireless healthcare service system. Contemporary research on cognitive radio driven healthcare has shown some improvement on trimming the EMI, spectrum scarcity and bandwidth issues. However, a visible research gap and very limited guidelines are observed on medical data transmission reliability in a Cognitive Radio (CR) based healthcare. Thus this research designs an intelligent dynamic priority enabled queuing management based hospital traffic transmission mechanism for a previously proposed CR enabled hospital named CogMed. An equation is formulated to compute weight of a hospital traffic considering hospital location and priority of its device. The proposed priority mechanism intelligently determines the critical level of hospital data and decreases the rate of packet drop. Simulation results show that the critical emergency medical traffic obligates very low drop rate (1.56%), queuing time and network delay compared to other medical devices. The proposed system outperforms some the other traditional established methods for wireless data transmission system.
Wireless is becoming more and more common in the healthcare system in near future. These may cause issues such as EMI effects on the operating devices, shortage of medical band. To handle these issues in a proper manner, a hospital system has to be designed carefully. Therefore, in this article we propose system definition and design of a cognitive radio enabled hospital system known as CogMed. First we describe the shortcomings of recent wireless healthcare facility by critically analyzing the contemporary literatures on cognitive radio network centric healthcare facility. Then we propose a fully opportunistic network based hospital system architecture where dynamic spectrum access (DSA) capable medical, non-medical and sensor devices are characterized based on a dynamic priority management mechanism. We prioritize the medical and non-medical device according to the urgency. We also proposed a priority based channel access mechanism which is based on IEEE 802.11.e standard. The proposed priority policy emphasized not only the devices, but also the application in wireless hospital.
