Results 31 to 40 of about 3,285 (273)
A Sequential Compressed Spectrum Sensing Algorithm against SSDH Attack in Cognitive Radio Networks
Journal of Electrical and Computer Engineering, 2018 Spectrum sensing is one of the key technologies in wireless wideband communication. There are still challenges in respect of how to realize fast and robust wideband spectrum sensing technology.
Zhuhua Hu +4 more
doaj +1 more source
Wideband Sequential Spectrum Sensing with Varying Thresholds [PDF]
2010 IEEE Global Telecommunications Conference GLOBECOM 2010, 2010 In this contribution, time varying threshold sequential detectors are employed for energy detection-based spectrum sensing in low- SNR regimes. Sequential detection is proven to be faster (on average) than any other multi-sample detector for a set of given probabilities of detection and false-alarm.
Kasra Haghighi +2 more
openaire +1 more source
A Recursive Algorithm for Joint Time-Frequency Wideband Spectrum Sensing [PDF]
, 2015 —In wideband spectrum sensing, secondary or un-licensed users take signal measurements over a given wide spectrum band and attempt to determine subbands for which the spectrum is idle and thus available for use.
Brian L. Mark, Joseph M. Bruno
core +1 more source
Wideband Spectrum Sensing For Cognitive Radio
, 2014 Publication in the conference proceedings of EUSIPCO, Lisbon, Portugal ...
José M. N. Vieira +2 more
openaire +3 more sources
A Recursive Algorithm for Wideband Temporal Spectrum Sensing
IEEE Transactions on Communications, 2018 Wideband spectrum sensing techniques determine which portions of a given spectrum band are occupied or idle in the frequency domain. The idle portions represent spectrum holes that can potentially be exploited by secondary or unlicensed users. Existing methods for wideband sensing, however, do not take into account the temporal activity of the primary ...
Joseph M. Bruno, Brian L. Mark
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A wideband spectrum sensing approach based on sub-band matching selection
Dianxin kexue, 2016 Wideband spectrum sensing technology based on compressed sensing can effectively reduce the high sampling rate and the complexity of spectrum sensing.During the sensing process,in order to enhance the reconstruction performance of the spectrum signal,a ...
Yuzhi YAN +4 more
doaj +2 more sources
Wideband Spectrum Sensing Based on Reconfigurable Filter Bank in Cognitive Radio
Future Internet, 2019 In order to ease the conflict between the bandwidth demand of high-rate wireless communication and the shortage of spectrum resources, a wideband spectrum sensing method based on reconfigurable filter bank (RFB) with adjustable resolution is presented ...
Huan Wang +3 more
doaj +1 more source
Distributed wideband spectrum sensing for cognitive radio networks [PDF]
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014 Wideband spectrum sensing improves the agility of spectrum sensing and spectrum hand-off in cognitive radio systems. In this paper, a distributed wideband spectrum sensing technique over adaptive diffusion networks is proposed. Considering unknown and different channels between the primary and the cognitive users, an averaged received power spectrum ...
Rocio Arroyo-Valles +2 more
openaire +2 more sources
Reliable wideband multichannel spectrum sensing using randomized sampling schemes
, 2010 A wideband multichannel spectrum sensing approach that utilizes nonuniform sampling and digital alias-free signal processing (DASP) to reliably sense the spectrum using sampling rates well below the ones used in classical DSP is proposed.
Tarczynski, A., Ahmad, B.I.
core +1 more source
Sensors, 2020 For wireless communication networks, cognitive radio (CR) can be used to obtain the available spectrum, and wideband compressed sensing plays a vital role in cognitive radio networks (CRNs).
Yuan Fang +4 more
doaj +1 more source