Abstract
WBAN (wireless body area networks) is an upcoming technology which stands to be a base for wearable and implantable sensors. The IEEE 802.15.6 formulates the physical and medium access for body area networks. The Body area networks can be implemented in several applications like health monitoring, ambient living environments and consumer electronics. This paper gives a clear overview about the functions of WBAN. The medium access layers and the physical layers of IEEE 802.15.6 are deeply examined and studied in this work. The access mechanisms of the protocol are explained in this paper. A clear literature review has also been stated to know the current state of art of this technology. The future possibilities and area to be explored also has been defined in this work.
Highlights
In the current world population 750 million people are aged above 60, it has been estimated that by the year 2050 this amount will increase 2 billion
Park (2003) in his work clearly defines what a wearable health care technology should have in it, He brings out the idea of sensors that are capable of recording the impulses from the human body internally or externally, these impulses may vary from a heartbeat, brain signal, sensorimoter signal or an ECG
Monte Carlo simulations are carried out for performance evaluation medical applications performance evaluation for ultra wideband (UWB)-based wireless body area networks (WBANs) through experiments by using a prototype conducted with mounting the system devices to body in anechoic chamber wearable sensors
Summary
In the current world population 750 million people are aged above 60, it has been estimated that by the year 2050 this amount will increase 2 billion. In case if the patient suffers from a severe heart attack, variation from a normal heart rate can be detected using an ECG signal that in turn provides the signal to the pacemaker to actuate User interaction to these technologies is feasible where a user can check these body parameters like temperature, heart rate, pressure, diabetes level, cholesterol through an external device like a cell phone which can communicate with the sensors in the body. The human body communications physical layer (HBC- PHY) uses the electric field communication (EFC) technology This PHY operates at a centered frequency of 21 MHz. PLCP Preamble, Start Frame Delimiter (SFD), PLCP Header, and PHY Payload (PSDU) constitutes the entire HBC PHY layer. The hub can provide only unscheduled type II polling access method. (Figure 7)
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