Joint power-QoS control scheme for energy harvesting body sensor nodes

Abstract

Abstract-In this paper, we aim at the optimal use of the scarce energy collected by a node powered by human energy harvesting in order to improve the provided Quality of Service (QoS). To achieve this goal, we have developed a Power-QoS control scheme, called PEH-QoS. PEH-QoS is composed of three sub-modules that interact with each other in order to make optimal use of energy and get the best possible QoS. The scheme intends to ensure that a node can both capture/detect the medical events and transmit the respective data packets efficiently. One of the main features of our mechanism is that only useful data sequences are transmitted, discarding data packets that have lost their clinical validity (i.e., out of date). Extensive simulations have been conducted in order to evaluate the behavior of PEH-QoS in a typical medical node under energy harvesting conditions. Index Terms-Body node, quality of service, energy harvesting, WBAN, Medium Access Control (MAC).

Light-weight and Low-cost HealthCare - A Cloud based BAN for Remote Health Monitoring

“…Body Area Sensor network is an exclusive type of ar-rangement designed and developed to observe, handle and correspond with various health parameters of an individual like Blood pressure, temperature and ECG etc [13], [14]. The health parameters can be examined by number of sen-sors deployed on the body else clothing or even beneath an individual's skin.…”

Telecommunication integration in e‐healthcare: technologies, applications and challenges

“…A power‐QoS control scheme is introduced in for WBANs, which ensures efficiency in both capturing/detecting the medical events and transmitting the respecting data to the central node. In this model, only useful data are transmitted, and clinically invalid data are discarded.…”

A MAC Protocol for Medical Monitoring Applications of Wireless Body Area Networks

“…In [ 24 ], a cloud-assisted RLNC-based MAC protocol was proposed to speed up the information flow between patient-worn sensors and the medical data center. In [ 25 , 26 ], a MAC protocol and a QoS control scheme are specially designed for energy-harvesting WBANs. However, these protocols are not optimized for transmitting the emergency data or the other urgent data.…”

“…The receiving processes related to sending a datum to the coordinator include receiving the acknowledge frame, the clear channel assessment (CCA) operation and the receiver warming up process. The average receiver power for sending an urgent datum from a node to the coordinator is presented by: where T Ack is the acknowledgment frame duration, T RX_wu represents the receiver warm-up time, T CCA is the clear channel assessment time, R denotes the average number of back-offs [ 26 ], P RX is the receiver power in receiving mode and T Event is the average interval that all of the nodes generate urgent data, which is equal to .…”