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Wireless localization with received signal strength (RSS) measurements catches a lot of attention for its simplicity and low cost. How to improve location estimation precision is a critical issue for localization applications with RSS measurements. In this paper, sensor selection method is involved. First, the optimal number of anchors to reach good performance is analyzed. Second, a quadratic program...
Group sparsity is extensively used in developing Compressed Sensing recovery algorithms, but it is ignored in dimensionality reduction. In this paper, we define supervised group distance based on group sparsity to measure the similarity between recovered sparse coefficients from Compressed Sensing for signal classification, especially the sparse coefficients intra-class. And a graph embedding dimensionality...
This paper proposes an efficient method for optimal joint precoding-postcoding design in a multi-input multi-output (MIMO) multi-sensor noisy observation context — a problem that is of great interest to the multi-relay MIMO transmission system. A set of wireless sensors, each provisioned with a different number of antennas and a different power constraint, precode and send their noisy observations...
There has been an increasing investigation in distributed radar sensor network (RSN) and MIMO-RSN, including waveform design, antenna strategy and spacetime coding, etc. However, distributed-RSN and MIMO-RSN are more like two parallel paths other than one research field in current literature. In this paper, we address the comparison between distributed-RSN and MIMO-RSN for target detection. We first...
This paper considers wireless sensor networks with limited bandwidth, where sensors must transmit sensing results that are distorted with noise uncertainty, to the fusion center reliably and efficiently. A class of rate-1 linear complex-field coding (CFC) transmission strategy is developed, to effectively protect the noisy observation of the signals without any bandwidth expansion. Pairwise error...
Recent years have witness booming interests of using wireless sensor networks (WSNs) for structural health monitoring (SHM). In a WSN, it has been widely regarded that wireless data transmission is one of the most energy consuming operations. To address the limitations of wireless sensor nodes in terms of power supply, in-network processing has been regarded as an effective way to decrease the energy...
Providing security for wireless sensor networks is challenging due to the resource limitations of sensor nodes. Leveraging the broadcast nature of wireless communication, we propose a behavior-based approach for attack detection and reporting in WSNs. In our approach, some ADS capable nodes are chosen for judging the behavior of their neighbors and conveying alarms to an administration sink when attacks...
Wireless sensor network (WSN) has been considered to be the next generation paradigm of structural health monitoring (SHM) systems due to its low cost, high scalability and flexibility. However, some inherent limitations of WSN such as low-bandwidth wireless communication, limited resources on wireless sensor nodes, must be addressed to meet the generally high requirements of SHM. Distributed in-network...
According to the effect of water with suspended particles to light propagation and temperature to turbidity and pressure, a multi-parameter measuring system with wireless transceiver and automatic temperature compensation is designed. The measured value of turbidity, temperature and pressure are transmitted to host computer (its monitor system software is written under VisualBasic6.0 program) by radio...
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