Research Article
An Adaptive GTS Allocation Mechanism in IEEE 802.15.4 for Various Rate Applications
@INPROCEEDINGS{10.1109/CHINACOM.2009.5339871, author={Haijun Zhang and Shulin Xin and Rong Yu and Zheng Lin and Yanyan Guo}, title={An Adaptive GTS Allocation Mechanism in IEEE 802.15.4 for Various Rate Applications}, proceedings={ChinaCom2009-Wireless Communications and Networking Symposium}, publisher={IEEE}, proceedings_a={CHINACOM2009-WCN}, year={2009}, month={11}, keywords={GTS IEEE 802.15.4 WSNs}, doi={10.1109/CHINACOM.2009.5339871} }- Haijun Zhang
Shulin Xin
Rong Yu
Zheng Lin
Yanyan Guo
Year: 2009
An Adaptive GTS Allocation Mechanism in IEEE 802.15.4 for Various Rate Applications
CHINACOM2009-WCN
IEEE
DOI: 10.1109/CHINACOM.2009.5339871
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.
