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18 papers found.
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Kernel PCA feature extraction and the SVM classification algorithm for multiple-status, through-wall, human being detection

Ultra-wideband (UWB) radar with strong anti-jamming performance and high-range resolution can be used to separate multiple human targets in a complex environment. In recent years, through-wall human being detection with UWB radar has become relatively sophisticated. In this paper, the method of kernel principal component analysis (KPCA) feature extraction and the support vector ...

An adaptive relay node selection algorithm based on opportunity

The collaborative relay network plays an important role in a smart grid application thanks to its high efficiency. However, energy and bandwidth management need to be further improved to extend network life cycle and reduce potential network segmentation. Aiming to balance the network energy consumption, this paper proposes an adaptive relay node selection algorithm based on the ...

Multiple statuses of through-wall human being detection based on compressed UWB radar data

Ultra-wideband (UWB) radar is one of the most favorable methods for through-wall human detection due to its strong penetration ability in many common non-metallic obstructions. The paper proposed the residual subspace projection method for multiple statuses of through-wall human being detection behind. And the compressed sensing method was presented to collect incomplete UWB radar ...

Model updating mechanism of concept drift detection in data stream based on classifier pool

In data stream, concept drift often occurs in an unpredictable way, the classifier model which was learned from previous data is not accurate to the current data, so regular updating of the model is necessary. Moreover, updating too frequently will cause a negative impact on the clustering accuracy and the analysis of subsequent data. This paper proposed a model-updating mechanism ...

Analysis of opportunistic spectrum access in cognitive radio networks using hidden Markov model with state prediction

Jyu-Wei Wang 0 Ramzi Adriman 1 0 Department of Photonics and Comm. Engineering, Asia University , No. 500, Lioufong Rd., Wufong District, Taichung City , Taiwan 1 Department of Computer Science

A novel energy-efficient resource allocation algorithm based on immune clonal optimization for green cloud computing

Cloud computing is a style of computing in which dynamically scalable and other virtualized resources are provided as a service over the Internet. The energy consumption and makespan associated with the resources allocated should be taken into account. This paper proposes an improved clonal selection algorithm based on time cost and energy consumption models in cloud computing ...

Joint spectrum sensing and access for stable dynamic spectrum aggregation

Spectrum aggregation is an emerging technology to satisfy the data rate requirement of broadband services for next-generation wireless communication systems. In dynamic spectrum environment, in which the spectrum availability is time-varying, it is quite challenging to maintain the stability of spectrum aggregation. In this paper, we investigate the spectrum sensing and access ...

Through-wall detection of human being with compressed UWB radar data

Baoju Zhang 0 Wei Wang 0 0 College of Physical and Electronic Information, Tianjin Normal University , Tianjin 300387, China The technology for through-wall human detection with ultra-wideband (UWB

Adaptive sampling with Bayesian compressive sensing in radar sensor networks and image

Wei Wang 0 Baoju Zhang 0 0 College of Physical and Electronic Information, Tianjin Normal University , Tianjin, China The theory of Bayesian compressive sensing is briefly introduced and the

Compressive sensing image fusion algorithm based on directionlets

Xin Zhou 0 Wei Wang 0 Rui-an Liu 0 0 College of Electronics and Communication Engineering, Tianjin Normal University , Tianjin 300387, China This paper presented a new image fusion based on

An adaptive routing optimization and energy-balancing algorithm in ZigBee hierarchical networks

ZigBee hierarchical tree routing protocol (HRP; ZigBee Alliance, San Ramon, CA, USA) provides a simple but reliable topology. However, the transmission routes are not always efficient, and the links are fixed after they were determined during the network initialization. In this paper, we propose an adaptive routing optimization and energy-balancing algorithm in ZigBee hierarchical ...

Optimization of relay placement and power allocation for decode-and-forward cooperative relaying over correlated shadowed fading channels

In this paper, we investigate the relay placement and power allocation for decode-and-forward (DF) cooperative relaying over correlated lognormal shadowed Rayleigh fading channels. Assuming that maximum-ratio combining is performed at the destination, we first derive an upper bound of symbol error rate (SER) with M-phase-shift keying (PSK) modulation. Then, three optimization ...

A routing algorithm on delay-tolerant of wireless sensor network based on the node selfishness

According to the problem of the intermittent connectivity of the nodes in the delay-tolerant sensor network, considering that the nodes in the network are of social selfishness, we study how to reduce transmission delay and communication overhead on the basis of ensuring the message delivery success rate of the entire network. We present a delay-tolerant routing algorithm based on ...

Statistical wavelet-based anomaly detection in big data with compressive sensing

Anomaly detection in big data is a key problem in the big data analytics domain. In this paper, the definitions of anomaly detection and big data were presented. Due to the sampling and storage burden and the inadequacy of privacy protection of anomaly detection based on uncompressed data, compressive sensing theory was introduced and used in the anomaly detection algorithm. The ...

The research of Kronecker product-based measurement matrix of compressive sensing

The theory of compressive sensing is briefly introduced, and some construction methods for measurement matrix are deduced. A measurement matrix based on Kronecker product is devised, and it has been proved in mathematical proof. Numerical simulations on 2-D image verify that the proposed measurement matrix has better performance in storage space, construction time, and image ...

Infrared and visible image fusion technology based on directionlets transform

The article provides an infrared and visible image fusion algorithm based on directionlets transform. The registered original images were decomposed into the low-frequency and high-frequency coefficients by directionlets transform. Getting the mean of the low-frequency coefficients, applying the local variance maximum principle to the high-frequency coefficients, thereby the fusion ...

Compressive SAR raw data with principal component analysis

Wei Wang 0 Baoju Zhang 0 Jiasong Mu 0 0 College of Physical and Electronic Information, Tianjin Normal University , Tianjin, China The theory of synthetic aperture radar (SAR) signal model is

Opportunistic Cognitive Relaying: A Win-Win Spectrum Sharing Scheme

Wei Wang 0 Shiju Li 0 Mischa Dohler 0 Institute of Information and Communication Engineering, Zhejiang University , Hangzhou Zhejiang 310027 , China A cost-effective spectrum sharing architecture is