35 Result(s)
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Signal, Image and Speech Processing
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Article
Engineering
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Article
Open AccessLinear precoding design for massive MIMO based on the minimum mean square error algorithm
Compared with the traditional multiple-input multiple-output (MIMO) systems, the large number of the transmit antennas of massive MIMO makes it more dependent on the limited feedback in practical systems. In t...
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Open AccessUnimodular sequence design under frequency hop** communication compatibility requirements
The integrated design for both radar and anonymous communication has drawn more attention recently since wireless communication system appeals to enhance security and reliability. Given the frequency hop** (...
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Open AccessA limited feedback scheme for massive MIMO systems based on principal component analysis
Massive multiple-input multiple-output (MIMO) is becoming a key technology for future 5G cellular networks. Channel feedback for massive MIMO is challenging due to the substantially increased dimension of the ...
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Open AccessWireless sensor network node optimal coverage based on improved genetic algorithm and binary ant colony algorithm
Considering the situation of some practical factors such as energy saving of the nodes and the high density of distributing nodes in wireless sensor networks, a wireless sensor network (WSN) node optimal cover...
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Open AccessA coalitional graph game framework for network coding-aided D2D communication
The application of device-to-device (D2D) communication in cellular networks can significantly improve the efficiency of spectrum utilization, which benefits local area cooperative services. On the other hand,...
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Open AccessA resolution enhancement algorithm for an asymmetric resolution stereo video
This paper presents a resolution enhancement algorithm in an asymmetric resolution stereo video for improving the video resolution. In this stereo video architecture, a scene is captured by two cameras to form...
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Open AccessSpectrum sharing on interference channels with a cognitive relay
In this paper, an interference channel with a cognitive relay (IFC-CR) is considered to achieve spectrum sharing between a licensed primary user and an unlicensed secondary user. The CR assists both users in r...
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Open AccessMultiple extended target tracking algorithm based on GM-PHD filter and spectral clustering
With the increase of the resolution of modern radars and other detection equipments, one target may produce more than one measurement. Such targets are referred to as extended targets. Recently, multiple exten...
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Open AccessFast target detection method for high-resolution SAR images based on variance weighted information entropy
Since the traditional CFAR algorithm is not suitable for high-resolution target detection of synthetic aperture radar (SAR) images, a new two-stage target detection method based on variance weighted informatio...
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Open AccessMaster Synchronization in Physical-Layer Communications of Wireless Sensor Networks
Synchronization in physical layer of wireless sensor networks is critical in restricting complexity of tag node and power consumption. Considering the master-to-tag communication (i.e., receiving signal from a...
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Open AccessGabor Directional Binary Pattern: An Image Descriptor for Gaze Estimation
This paper proposes an image descriptor, Gabor Directional Binary Pattern (GDBP), for robust gaze estimation. In GDBP, Gabor magnitude information is extracted firstly from a cropped subimage. The local direct...
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Open AccessESVD: An Integrated Energy Scalable Framework for Low-Power Video Decoding Systems
Video applications using mobile wireless devices are a challenging task due to the limited capacity of batteries. The higher complex functionality of video decoding needs high resource requirements. Thus, powe...
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Open AccessAdaptive Reliable Routing Based on Cluster Hierarchy for Wireless Multimedia Sensor Networks
As a multimedia information acquisition and processing method, wireless multimedia sensor network(WMSN) has great application potential in military and civilian areas. Compared with traditional wireless sensor...
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Open AccessSelective Weighting of Undecimated Wavelet Coefficients for Noise Reduction in SAR Interferograms
This paper describes a technique for noise reduction in synthetic aperture radar interferometry. The noisy interferogram is decomposed using undecimated wavelet transform and the coefficients are weighted. A n...
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Open AccessEvaluating Edge Detection through Boundary Detection
Edge detection has been widely used in computer vision and image processing. However, the performance evaluation of the edge-detection results is still a challenging problem. A major dilemma in edge-detection ...
