An Efficient GTS Allocation Scheme for IEEE 802.15.4 MAC Layer

Der-Chen Huang¹, Yi-Wei Lee¹ and Hsiang-Wei Wu¹

National Chung Hsing University
Taiwan, R.O.C.
huangdc@nchu.edu.tw

Abstract

Based on IEEE 802.15.4, the contention-free period (CFP) adopts a guarantee time slot (GTS) mechanism to ensure each device can access the radio channel. However, it is hard to get the authority to access the radio channel due to more competitor access the radio channel simultaneously. To cope with this issue, we proposed a guarantee time slot mechanism to enhance the performance and utilization by using CFP. Our proposed method ensures each device has the authority to access the radio channel without any additional step. By comparing with the method of IEEE 802.15.4, the experimental results show that data average transmission delay and energy consumption can be reduced dramatically. In addition, the bandwidth and performance of network is improved since the pre-allocation mechanism can reduce the number of control packets. Several experiments have been conducted to demonstrate the performance of our work.

Key words

ZigBee, GTS, Cluster Tree, Beacon, MAC Layer

Digital Object Identifier (DOI)

https://doi.org/10.2298/CSIS120702027H

Publication information

Volume 10, Issue 2 (April 2013)
Special Issue on Advances on Mobile Collaborative Systems
Year of Publication: 2013
ISSN: 2406-1018 (Online)
Publisher: ComSIS Consortium

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How to cite

Huang, D., Lee, Y., Wu, H.: An Efficient GTS Allocation Scheme for IEEE 802.15.4 MAC Layer. Computer Science and Information Systems, Vol. 10, No. 2, 651-665. (2013), https://doi.org/10.2298/CSIS120702027H