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http://dx.doi.org/10.5573/ieie.2014.51.12.099

Packet Scheduling Algorithm for QoS Enhancement in WBAN  

Kim, JiWon (Dept. of Electronic Engineering Inha University)
Kim, Jinhyuk (Dept. of Electronic Engineering Inha University)
Choi, SangBang (Dept. of Electronic Engineering Inha University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.51, no.12, 2014 , pp. 99-108 More about this Journal
Abstract
WBAN(Wireless Body Area Network) is network to support medical and non-medical services. It is susceptible to loss and delay of data. WBAN is required to satisfy many kinds of demands such as a variety of data rate and a data priority for providing various service. In this paper scheduling algorithm, considering a data priority and transmission delay time, is proposed to improve service quality of WBAN. The proposed algorithm operates by allocating a channel to a flow with longer transmission delay. When a packet, in a queue of herb, is left within a certain period, the packet is assigned a channel and transmitted according to a data priority. Through the comparison with other existing scheduling algorithms, it is confirmed that QoS is improved due to higher arrival probability of medical data and less delay time in the proposed algorithm.
Keywords
WBAN; QoS; packet scheduling algorithm; priority; delay time;
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