ELBA: A New Efficient Load-Balancing Association in IEEE 802.15.4-Based Wireless Sensor Networks

Jae-Hyung LEE  Dong-Sung KIM  Soo-Young SHIN  

IEICE TRANSACTIONS on Communications   Vol.E95-B   No.5   pp.1830-1833
Publication Date: 2012/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.1830
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Network
IEEE 802.15.4,  load balancing,  association,  wireless sensor network.,  

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In this letter, a novel association method called ELBA (efficient load balancing association) is proposed for improved load balancing in IEEE 802.15.4-based WSNs (wireless sensor networks). ELBA adds new nodes to the network in an efficient load-balancing manner by exploiting not only RSSI (received signal strength indicator), which is used in the standard, but also traffic-load, the number of allocated GTSs (guaranteed time slots), and the number of parent nodes and child nodes. Simulation results show that ELBA offers better performance in load balancing and preventing congestion.