Please use this identifier to cite or link to this item: https://doi.org/10.3390/s130607308
Title: An optimized handover scheme with movement trend awareness for body sensor networks
Authors: Sun, W.
Zhang, Z.
Ji, L.
Wong, W.-C. 
Keywords: Body sensor network
Handover
Localization
Issue Date: Jun-2013
Source: Sun, W., Zhang, Z., Ji, L., Wong, W.-C. (2013-06). An optimized handover scheme with movement trend awareness for body sensor networks. Sensors (Switzerland) 13 (6) : 7308-7322. ScholarBank@NUS Repository. https://doi.org/10.3390/s130607308
Abstract: When a body sensor network (BSN) that is linked to the backbone via a wireless network interface moves from one coverage zone to another, a handover is required to maintain network connectivity. This paper presents an optimized handover scheme with movement trend awareness for BSNs. The proposed scheme predicts the future position of a BSN user using the movement trend extracted from the historical position, and adjusts the handover decision accordingly. Handover initiation time is optimized when the unnecessary handover rate is estimated to meet the requirement and the outage probability is minimized. The proposed handover scheme is simulated in a BSN deployment area in a hospital environment in UK. Simulation results show that the proposed scheme reduces the outage probability by 22% as compared with the existing hysteresis-based handover scheme under the constraint of acceptable handover rate. © 2013 by the authors; licensee MDPI, Basel, Switzerland.
Source Title: Sensors (Switzerland)
URI: http://scholarbank.nus.edu.sg/handle/10635/55051
ISSN: 14248220
DOI: 10.3390/s130607308
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