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http://dx.doi.org/10.9708/jksci.2011.16.11.045

Algorithm of GTS Time Slots Allocation Based on Weighted Fair Queuing in Environments of WBAN  

Kim, Kyoung-Mok (Dept. Medical Information System, Sahmyook Health University)
Jung, Won-Soo (Dept. of Digital Contents Faculty, Kaywon School of Art and Design)
Publication Information
Journal of the Korea Society of Computer and Information / v.16, no.11, 2011 , pp. 45-56 More about this Journal
Abstract
WBAN is short range wireless communication technology which is consists of several small devices close to, attached to or implanted into the human body. WBAN is classified into between medical and non-medical by applications based on technology and medical data with periodic characteristics is used the GTS method for transmitting data to guarantee the QoS. In this paper we proposed algorithm that resolve lack of GTSs while data transmit GTS method in superframe structure of WBAN. Coordinator dynamically allocates GTSs according to the data rate of devices and make devices share GTSs when lack of GTSs. We compared delay bounds, throughput for performance evaluation of the proposed algorithm. In other words, we proposed algorithm adaptive WFQ scheduling that GTS allocation support differential data rate in environments of WBAN. The experiment results show the throughput increased and the maximum delay decreased compared with Round Robin scheduling.
Keywords
Wireless Body Aare Network; Weighted Fair Queuing; Guaranteed Time Slot; Quality of Service;
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