Delay, Reliability, and Throughput Based QoS Profile: A MAC Layer Performance Optimization Mechanism for Biomedical Applications in Wireless Body Area Sensor NetworksReportar como inadecuado




Delay, Reliability, and Throughput Based QoS Profile: A MAC Layer Performance Optimization Mechanism for Biomedical Applications in Wireless Body Area Sensor Networks - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Journal of Sensors - Volume 2016 2016, Article ID 7170943, 17 pages -

Research Article

Faculty of Science and Technology, Bournemouth University, Poole House, Talbot Campus, Fern Barrow, Poole BH12 5BB, UK

Faculty of Management, Bournemouth University, Poole House, Talbot Campus, Fern Barrow, Poole BH12 5BB, UK

Received 11 August 2015; Revised 21 October 2015; Accepted 9 November 2015

Academic Editor: Yasuko Y. Maruo

Copyright © 2016 Muhammad Sajjad Akbar et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Recently, increasing demand for remote healthcare monitoring systems poses a specific set of Quality of Services QoS requirements to the MAC layer protocols and standards IEEE 802.15.6, IEEE 802.15.4, etc. of Wireless Body Area Sensor Networks WBASNs. They mainly include time bounded services latency, reliable data transmission, fair channel distribution, and specified data rates. The existing MAC protocols of WBASNs are lack of a specific set of QoS. To address this, the paper proposes a QoS profile named delay, reliability, and throughput DRT. The QoS values computed through DRT profile provide maximum reliability of data transmission within an acceptable latency and data rates. The DRT is based on the carrier sense multiple access with collision avoidance CSMA-CA channel access mechanism and considers IEEE 802.15.4 low-rate WPAN and IEEE 802.15.6 WBASN. Further, a detailed performance analysis of different frequency bands is done which are standardized for WBASNs, that is, 420 MHz, 868 MHz, 2.4 GHz, and so forth. Finally, a series of experiments are conducted to produce statistical results for DRT profile with respect to delay, reliability, and packet delivery ratio PDR. The calculated results are verified through extensive simulations in the CASTALIA 3.2 framework using the OMNET++ network simulator.





Autor: Muhammad Sajjad Akbar, Hongnian Yu, and Shuang Cang

Fuente: https://www.hindawi.com/



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