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http://dx.doi.org/10.5573/ieie.2017.54.2.016

The Medium Access Scheduling Scheme for Efficient Data Transmission in Wireless Body Area Network  

Jang, EunMee (Dept. of Electronic Engineering, Inha University)
Park, TaeShin (Dept. of Electronic Engineering, Inha University)
Kim, JinHyuk (Dept. of Electronic Engineering, Inha University)
Choi, SangBan (Dept. of Electronic Engineering, Inha University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.54, no.2, 2017 , pp. 16-27 More about this Journal
Abstract
IEEE 802.15.6 standard, a Wireless Body Area Network, aims to transfer not only medical data but also non-medical data, such as physical activity, streaming, multimedia game, living information, and entertainment. Services which transfer those data have very various data rates, intervals and frequencies of continuous access to a medium. Therefore, an efficient anti-collision operations and medium assigning operation have to be carried out when multiple nodes with different data rates are accessing shared medium. IEEE 802.15.6 standard for CSMA/CA medium access control method distributes access to the shared medium, transmits a control packet to avoid collision and checks status of the channel. This method is energy inefficient and causes overhead. These disadvantages conflict with the low power, low cost calculation requirement of wireless body area network, shall minimize such overhead for efficient wireless body area network operations. Therefore, in this paper, we propose a medium access scheduling scheme, which adjusts the time interval for accessing to the shared transmission medium according to the amount of data for generating respective sensor node, and a priority control algorithm, which temporarily adjusts the priority of the sensor node that causes transmission concession due to the data priority until next successful transmission to ensure fairness.
Keywords
WBAN; CSMA/CA; random access scheduling;
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Times Cited By KSCI : 1  (Citation Analysis)
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