On the Throughput and Energy Efficiency of Cognitive MIMO Transmissions
, 2013 In this paper, throughput and energy efficiency of cognitive multiple-input multiple-output (MIMO) systems operating under quality-of-service (QoS) constraints, interference limitations, and imperfect channel sensing, are studied.
Akin, Sami, Gursoy, Mustafa Cenk
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Cyclostationary Feature Detection Based on Compressed Sensing and Wavelet De-Noising
Dianxin kexue, 2015 To improve the vacant spectrum utilization，ultra-wideband spectrum sensing is critical for cognitive radio （CR）as it enables secondary users to dynamically access the unoccupied spectrum bands.However，the fast and accurate spectrum sensing is still a ...
Haifeng Tan +3 more
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Wideband Spectrum Sensing For Cognitive Radio
, 2014 Publication in the conference proceedings of EUSIPCO, Lisbon, Portugal ...
Malafaia, Daniel +2 more
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Spatial-Spectral Joint Detection for Wideband Spectrum Sensing in Cognitive Radio Networks
, 2008 Spectrum sensing is an essential functionality that enables cognitive radios to detect spectral holes and opportunistically use under-utilized frequency bands without causing harmful interference to primary networks.
Cui, Shuguang +3 more
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Xampling: Signal Acquisition and Processing in Union of Subspaces
, 2011 We introduce Xampling, a unified framework for signal acquisition and processing of signals in a union of subspaces. The main functions of this framework are two.
Eldar, Yonina C. +2 more
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Compressive sensing based maximum-minimum subband energy detection for cognitive radios
Heliyon, 2020 To satisfy the growing spectrum demands of emerging wireless applications, cognitive radios have been considered as a viable option. It enables dynamic spectrum access opportunistically using wideband spectrum sensing (WSS) methods to discover the ...
Desalegn T. Dagne +2 more
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Improved Energy Detector for Wideband Spectrum Sensing in Cognitive Radio Networks [PDF]
, 2014 In this paper, an improved energy detector for a wideband spectrum sensing is proposed. For a better detection of the spectrum holes the overall band is divided into equal non-overlapping sub-bands.
Ahmadian-Attari, M. +3 more
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Least entropy based randomized strategy for wideband spectrum sensing with cooperation
Tongxin xuebao, 2010 To study the strategy for wideband spectrum sensing in cognitive radio system,the relation between the accuracy of channel state estimation and entropy was analyzed from the perspective of information entropy.And then a least entropy based randomized ...
MAI Lei-xin, QIN Xiao-wei, DAI Xu-chu
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Estimating Sparse Signals Using Integrated Wideband Dictionaries
, 2017 In this paper, we introduce a wideband dictionary framework for estimating sparse signals. By formulating integrated dictionary elements spanning bands of the considered parameter space, one may efficiently find and discard large parts of the parameter ...
Butsenko, Maksim +2 more
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Mixed-Signal Parallel Compressive Spectrum Sensing for Cognitive Radios
International Journal of Digital Multimedia Broadcasting, 2010 Wideband spectrum sensing for cognitive radios requires very demanding analog-to-digital conversion (ADC) speed and dynamic range. In this paper, a mixed-signal parallel compressive sensing architecture is developed to realize wideband spectrum sensing ...
Zhuizhuan Yu +5 more
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