Enhanced Beacon-Enabled Mode for improved IEEE 802.15.4 low data rate performance

Authors:
Xiaoyun Li;Chris J. Bleakley;Wojciech Bober
Affiliations:
Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, University Town of Shenzhen, Shenzhen, China 518055;UCD Complex and Adaptive Systems Laboratory, UCD School of Computer Science and Informatics, University College Dublin, Dublin, Ireland;UCD Complex and Adaptive Systems Laboratory, UCD School of Computer Science and Informatics, University College Dublin, Dublin, Ireland
Venue:
Wireless Networks
Year:
2012

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Abstract

This paper proposes enhancements to IEEE 802.15.4 Beacon-Enabled Mode that provide improved network performance and lower power consumption for low data rate applications. The proposed mode utilizes a Synchronous Low Power Listening technique that allows nodes to sleep for multiple Beacon Intervals and subsequently recover Beacon synchronization in a power efficient manner. The proposed mode also incorporates a Periodic Wakeup scheme that allows nodes to transmit at scheduled times during the inactive period. The proposed Enhanced Mode is backward compatible and inter-operable with the original standard. Simulation results show that the proposed Enhanced Mode reduces the power consumption overhead of synchronization by more than 50% for applications with low data rates compared with standard Beacon-Enabled mode. End-to-end delay and packet loss rate are reduced by more than 90% compared with standard Beacon-Enabled mode. The proposal can adapt to the change of traffic load, and prolong the lifetime of the PAN Coordinator by 1---5 times compared to standard Beacon Enabled mode.