The Community for Technology Leaders
Green Image
Issue No. 01 - January (2009 vol. 8)
ISSN: 1536-1233
pp: 29-40
Tsung-Han Lin , National Taiwan University, Taipei
Polly Huang , National Taiwan University, Taipei
Hao-Hua Chu , National Taiwan University, Taipei
Chuang-Wen You , National Taiwan University, Taipei
Boundary detection is a form of location-aware services that aims at detecting targets crossing certain critical regions. Typically, a lower location sampling rate contributes to a lower level of energy consumption but, in the meantime, delays the detection of boundary crossing events. Opting to enable energy-efficient boundary detection services, we propose a mobility-aware mechanism that adapts the location sampling rate to the target mobility. Results from our simulations and live experiments confirm that the proposed adaptive sampling mechanism is effective. In particular, when experimented with realistic errors measured from a live RF-based localization system, the energy consumption can be reduced significantly to 20%.
JWireless sensor networks, Efficiency

P. Huang, T. Lin, H. Chu and C. You, "Energy-Efficient Boundary Detection for RF-Based Localization Systems," in IEEE Transactions on Mobile Computing, vol. 8, no. , pp. 29-40, 2008.
85 ms
(Ver 3.3 (11022016))