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Network Coded Cooperative Communication in a Real-Time Wireless Hospital Sensor Network.

Network Coded Cooperative Communication in a Real-Time Wireless Hospital Sensor Network.
Author Information (click to view)

Prakash R, Balaji Ganesh A, Sivabalan S,


Prakash R, Balaji Ganesh A, Sivabalan S, (click to view)

Prakash R, Balaji Ganesh A, Sivabalan S,

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Journal of medical systems 2017 03 1641(5) 72 doi 10.1007/s10916-017-0721-8
Abstract

The paper presents a network coded cooperative communication (NC-CC) enabled wireless hospital sensor network architecture for monitoring health as well as postural activities of a patient. A wearable device, referred as a smartband is interfaced with pulse rate, body temperature sensors and an accelerometer along with wireless protocol services, such as Bluetooth and Radio-Frequency transceiver and Wi-Fi. The energy efficiency of wearable device is improved by embedding a linear acceleration based transmission duty cycling algorithm (NC-DRDC). The real-time demonstration is carried-out in a hospital environment to evaluate the performance characteristics, such as power spectral density, energy consumption, signal to noise ratio, packet delivery ratio and transmission offset. The resource sharing and energy efficiency features of network coding technique are improved by proposing an algorithm referred as network coding based dynamic retransmit/rebroadcast decision control (LA-TDC). From the experimental results, it is observed that the proposed LA-TDC algorithm reduces network traffic and end-to-end delay by an average of 27.8% and 21.6%, respectively than traditional network coded wireless transmission. The wireless architecture is deployed in a hospital environment and results are then successfully validated.

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