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A Review : Wireless Body Area Network Performance Dependency

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A Review: Wireless Body Area Network Performance Dependency

Introduction:
Wireless network of wearable computing devices is known as Body Area Network (BAN),/ Wireless Body Area Network (WBAN) / Body Sensor Network (BSN).WBAN is a wireless network which is used in wearable computing devices[1]. It can be either embedded inside the body or can be surface mounted on fixed position wearable technology. One can carry theses such devices along with them like in bags, in pockets, By hand etc. A network consists of several miniaturized Body -Sensor Units together with a single Body Central Unit because of the trend in miniaturization of devices.[2] The Smart devices like pad or tabs which are larger in size still plays an important role as data hub, data gateways and provides a GUI to view and manage BAN applications in the appropriate position. Figure.1 example of WBAN [2]
Components of WBAN:
• Sensing unit
• Processing unit
• Analog-to-digital converter (A/D converter)
• Power unit
• Communication unit (radio transceiver)
• Memory or storage unit
WBAN uses the Actuators because they convert an electrical signal to some action such as a physical phenomenon, e.g., servo motors, insulin pumps, etc. The main task of the sensor node is to sense one or more physical, physiological, chemical or biological signal/signals from human body or its surroundings.[3][4][6] Then these signals are processed like filtration, amplification, digitization, feature extraction

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