Title :
A localized de-synchronization algorithm for periodic data reporting in IEEE 802.15.4 WSNs
Author :
De Guglielmo, Domenico ; Anastasi, Giuseppe ; Conti, Marco
Author_Institution :
Dept. of Inf. Eng., Univ. of Pisa, Pisa, Italy
Abstract :
Energy efficiency is typically the most important requirement in wireless sensor networks (WSNs). However, in many application domains, additional requirements such as reliability, timeliness and scalability need to be considered as well. As emphasized in previous studies, the IEEE 802.15.4 MAC protocol has severe limitations in terms of performance and energy efficiency, which make it unsuitable for many application scenarios. In this paper we propose an asynchronous adaptive algorithm for periodic data reporting that leverages the 802.15.4 Beacon-Disabled Mode but de-synchronizes the access times of different sensor nodes, so as to minimize the collision probability. Unlike previous de-synchronization schemes, the proposed approach only relies on local information. Simulation results show that our asynchronous algorithm can provide a performance very similar to that of a TDMA scheme but, unlike TDMA, it does not requires any synchronization among nodes.
Keywords :
Zigbee; access protocols; energy conservation; probability; synchronisation; wireless sensor networks; 802.15.4 beacon-disabled mode; IEEE 802.15.4 MAC protocol; IEEE 802.15.4 WSN; TDMA; asynchronous adaptive algorithm; asynchronous algorithm; collision probability; desynchronization schemes; energy efficiency; localized desynchronization algorithm; periodic data reporting; sensor nodes; wireless sensor networks; Algorithm design and analysis; Energy efficiency; IEEE 802.15 Standards; Media Access Protocol; Reliability; Time division multiple access; Wireless sensor networks; Beacon-Disabled Mode; Beacon-Enabled Mode; Energy Efficiency; IEEE 802.15.4; MAC Protocol;
Conference_Titel :
Computers and Communications (ISCC), 2012 IEEE Symposium on
Conference_Location :
Cappadocia
Print_ISBN :
978-1-4673-2712-1
Electronic_ISBN :
1530-1346
DOI :
10.1109/ISCC.2012.6249363