Browse > Article
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)
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;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Anis KOUBAA, Mario ALVES, Eduardo TOVAR, "GTS Allocation Analysis in IEEE 802.15.4 for Real-Time Wireless Sensor Networks," WPDRTS'06, special track on WSNs, 2006.
2 Anis KOUBAA, Mario ALVES, Eduardo TOVAR, "I-GAME: An Implicit GTS AllocationMechanismin IEEE 802.15.4 for Time-Sensitive Wireless Sensor Networks," ECRTS'06, 2006.
3 Dae-Young Kim, Jinsung Cho, "WBAN meets WBAN: Smart Mobile Space over Wireless Body Area Networks," BTC 2009-Fall, IEEE 70th, pp.1-5, Sep, 2009
4 IEEE Standard for Information technology- Telecom munications and information exchange between systems- Local and metropolitan area networks-Specific requirements Part 15.4 Wireless Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (WPANs), 2006
5 H. B. Li, K. Takizawa, B. Zhen, and R. Kohno, "Body Area Network and Its Standardization at IEEE 802.15.MBAN," 16th IST Mobile and Wireless Communications Summit, 2007.
6 T.Zasowski, F.Althaus, M.Stager, A.Wittneben, G.Troster, "UWB for Noninvasive Wireless Body Area Network: Channel Measurements and Results," IEEE Conf. Ultra Wideband Systems and Technologies, pp.285-289, Nov. 2003.
7 Bin Zhen, Huan-Bang Li, and Ryuji Kohno, "IEEE Body Area Networks and Medical Implant Commun icatioins," BodyNets2008, pp.24-35, 2008.
8 Won-Soo Jung, Young-Hwan Oh, "Improving Tech niques of MAC Protocol for a Quality Guarantee of Service in WBAN Environment", The Journal of Korea Information and Communications Society, Vol. 35. No. 2, pp.50-58, Feb. 2010.