Sparse Representation for Blind Spectrum Sensing in Cognitive Radio: A Compressed Sensing Approach

2016 ◽  
Vol 35 (12) ◽  
pp. 4413-4444 ◽  
Author(s):  
Parthapratim De ◽  
Udit Satija
2019 ◽  
Vol 8 (2) ◽  
pp. 4691-4695

The cooperation for big data applications through the cognitive radio innovation requires wideband spectrum sensing. Conversely, it is expensive to employ long haul wideband detecting and is particularly troublesome within the sight of vulnerability. For example, more noise, obstruction, anomalies, as well as channel blurring. In this article, we project the planning of successive compacted range detecting which together endeavors compressive sensing (CS) and consecutive occasional identification procedures to accomplish increasingly exact and convenient wideband detecting. Rather than summoning CS to recreate the signal in every period, our projected plan executes in reverse assembled packed information consecutive likelihood proportion test (in reverse GCD-SPRT) utilizing compacted information tests in successive identification, while CS recuperation is just sought after when required. This technique altogether diminishes the compressed sensing recuperation overhead, and on different exploits successive location to increase the detecting excellence. Moreover, we project an inside and out detecting plan to quicken detecting basic leadership when an adjustment in channel position is suspicious, (b) a square scanty CS remaking calculation to abuse the square sparsityfeatures of wide range, and (c) a lot of plans to meld results from the recuperated range signs to additionally improve the general detecting exactness. Broad execution assessment results demonstrate that the projected plans can altogether outflank peer conspires below adequately low SNR properties.


2014 ◽  
Vol 602-605 ◽  
pp. 3639-3642 ◽  
Author(s):  
Chua Nan Cui

As the latest progress in modern signal processing, Compressed Sensing (CS) has great potential for application in the field of cognitive radio and other fields. In this paper, the basic principle of compressed sensing technology and its application in cognitive radio spectrum perception key technologies are studied, achieving innovative research results. Spectrum sensing technology in cognitive radio


2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Wael Guibène ◽  
Dirk Slock

We propose to fuse two main enabling features in cognitive radio systems (CRS): spectrum sensing and location awareness in a single compressed sensing based formalism. In this way, we exploit sparse characteristics of primary units to be detected, both in terms of spectrum used and location occupied. The compressed sensing approach also allows to overcome hardware limitations, in terms of the incapacity to acquire measurements and signals at the Nyquist rate when the spectrum to be scanned is large. Simulation results for realistic network topologies and different compressed sensing reconstruction algorithms testify to the performance and the feasibility of the proposed technique to enable in a single formalism the two main features of cognitive sensor networks.


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