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Title: EleSense : elevator-assisted wireless sensor data collection for high-rise structure monitoring
Authors: Wang, F
Wang, D 
Liu, J
Keywords: Access protocols
Computerised monitoring
Condition monitoring
Sensor fusion
Structural engineering
Wireless lAN
Wireless sensor networks
Issue Date: 2012
Source: 2012 Proceedings IEEE INFOCOM, 25-30 March 2012, Orlando, FL, p. 163-171 How to cite?
Abstract: Wireless sensor networks have been widely suggested to be used in Cyber-Physical Systems for Structural Health Monitoring. However, for nowadays high-rise structures (e.g., the Guangzhou New TV Tower, peaking at 600m above ground), the extensive vertical dimension creates enormous challenges toward sensor data collection, beyond those addressed in state-of-the-art mote-like systems. One example is the data transmission from the sensor nodes to the base station. Given the long span of the civil structures, neither a strategy of long-range one-hop data transmission nor short-range hop-by-hop communication is cost-efficient. In this paper, we propose EleSense, a novel high-rise structure monitoring framework that uses elevators to assist data collection. In EleSense, an elevator is attached with the base station and collects data when it moves to serve passengers; as such, the communication distance can be effectively reduced. To maximize the benefit, we formulate the problem as a cross-layer optimization problem and propose a centralized algorithm to solve it optimally. We further propose a distributed implementation to accommodate the hardware capability of sensor nodes and address other practical issues. Through extensive simulations, we show that EleSense has achieved a significant throughput gain over the case without elevators and a straightforward 802.11 MAC scheme without the cross-layer optimization. Moreover, EleSense can greatly reduce the communication costs while maintaining good fairness and reliability. We also conduct a case study with real experiments and data sets on the Guangzhou New TV Tower, which further validates the effectiveness of our EleSense.
ISBN: 978-1-4673-0773-4
DOI: 10.1109/INFCOM.2012.6195534
Appears in Collections:Conference Paper

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