A new GTS allocation schemes for IEEE 802.15.4

Author

Lu Yang ; Shen Zeng

Author_Institution

Sch. of Commun. & Inf. Eng., Chongqing Univ. of Posts & Telecommun., Chongqing, China

fYear

2012

fDate

16-18 Oct. 2012

Firstpage

1398

Lastpage

1401

Abstract

The IEEE802.15.4 standard provides beacon-enabled and non-beacon modes. In the beacon-enabled mode, which consists of Guaranteed Time Slots (GTS) allocated to individual devices by the network coordinator. The GTS is used by devices for cyclic data transmission and the coordinator can allocate GTS to a maximum of only seven, what is wrong, the bandwidth underutilization problem occurs in GTS when the used bandwidth is less than the available. In this paper, a new GTS scheme is presented to allow more devices to share the bandwidth within the same period. We divide the CFP into 32 equally sized slots and we have presented the new GTS scheme without introducing any changes in the frame format. The evaluation results show that the bandwidth utilization is improved.

Keywords

IEEE standards; Zigbee; biomedical communication; data communication; GTS allocation schemes; GTS scheme; Guaranteed Time Slots; IEEE 802.15.4 standard; bandwidth underutilization problem; beacon enabled mode; cyclic data transmission; network coordinator; nonbeacon mode; CFP; GTS; IEEE802.15.4; beacon-enabled;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering and Informatics (BMEI), 2012 5th International Conference on

Conference_Location

Chongqing

Print_ISBN

978-1-4673-1183-0

Type

conf

DOI

10.1109/BMEI.2012.6513073

Filename

6513073