An adaptive GTS allocation mechanism in IEEE 802.15.4 for various rate applications

Author

Zhang, Haijun ; Xin, Shulin ; Yu, Rong ; Lin, Zheng ; Guo, Yanyan

Author_Institution

Northern Electron. Instrum. Inst., Beijing, China

fYear

2009

fDate

26-28 Aug. 2009

Firstpage

1

Lastpage

5

Abstract

IEEE 802.15.4 standard provides a Guaranteed Time Slot (GTS) mechanism for time sensitive wireless networks in the beacon-enabled mode. However, the bandwidth underutilization problem may become worse when the traffic flow with various arrival rates leads to variance between the arrival rate and the guaranteed bandwidth which is allocated to satisfy the case of the maximal arrival rate. To overcome this limitation, we propose an Adaptive GTS Allocation scheme through feedback mechanism in beacon-enabled IEEE 802.15.4 networks to periodically reallocate the GTS bandwidth, taking into account the current arrival rate specifications and delay requirement of traffic flows. We validate the efficiency of the proposed scheme by simulation by comparing it with the MAC protocol of IEEE 802.15.4.

Keywords

access protocols; bandwidth allocation; feedback; personal area networks; telecommunication traffic; GTS bandwidth; IEEE 802.15.4; MAC protocol; adaptive GTS allocation mechanism; arrival rate; feedback mechanism; guaranteed time slot mechanism; time sensitive wireless networks; traffic flows; Bandwidth; Calculus; Feedback; Home automation; Instruments; Protocols; Telecommunication traffic; Traffic control; Wireless networks; Wireless sensor networks; GTS; IEEE 802.15.4; WSNs;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Networking in China, 2009. ChinaCOM 2009. Fourth International Conference on

Conference_Location

Xian

Print_ISBN

978-1-4244-4337-6

Electronic_ISBN

978-1-4244-4337-6

Type

conf

DOI

10.1109/CHINACOM.2009.5339871

Filename

5339871