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A closed-form of cooperative detection probability using EGC-based soft decision under Suzuki fading
2017
2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)
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In cooperative spectrum sensing based on energy detection, several researchers have concluded that Soft Decision has better detection performance than Hard Decision. ...
In this paper, we focus on Equal Gain Combining (EGC)-based soft decision under Suzuki fading which is a composite Rayleighlognormal fading. ...
ACKNOWLEGEMENT This work was supported by National Foundation for Science and Technology Development (NAFOSTED), Vietnam. ...
doi:10.1109/icspcs.2017.8270508
dblp:conf/icspcs/DinhNS17
fatcat:p7vtmlmfbfamnolotqwbndnfea
Review on The Performance of Softened Two-Bit Hard Combination Scheme for Cooperative Spectrum Sensing
2018
Technological Engineering
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This paper measures the performance of cooperative spectrum sensing, over Rayleigh fading channel and additive white Gaussian noise, based on softened two-bit hard combination scheme. ...
The performance of cooperative spectrum sensing in CR over Raleigh fading channel and AWGN was studied. ...
decision for hard combining. 3 Quantized Soft Combining: CR users can quantize the local sensing results and send only the quantized data for soft combining to alleviate control channel communication ...
doi:10.1515/teen-2018-0010
fatcat:q2zsvmzxxfcolnrlqbut4yxdlu
Cooperative Cognitive Radio with Obstacles on the Sensing Channels
2019
Journal of Communications
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Abstract-This paper investigates the performance of cooperative cognitive radio with obstacles on the sensing channels. The analysis focuses on weighted summation combining in the fusion center. ...
In this paper we propose Rayleigh, Rician, and Nakagami-m channel models to handle the presence of obstacles in the sensing channels. The analysis is based on the central limit theorem. ...
In [9] block flat-fading channels are assumed in the model for analyzing the CSS and in [7] Nakagami-m fading channels are assumed with MRC reception. ...
doi:10.12720/jcm.14.5.396-401
fatcat:np5cwnhxjfcltc5cmk2tmge47q
Performance Analysis of Cooperative Spectrum Sensing Technique for Low SNR Regime over Fading Channels for Cognitive Radio Networks
2015
Indian Journal of Science and Technology
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Probability of missed detection has been reduced by 38% over Rayleigh Fading channel and 52% over Nakagami Fading channel compared to conventional sensing technique for ten users cooperation. ...
The combination of wavelet denoising preceeding energy detector, hard decision for local sensing and OR fusion rule at the fusion center for cooperative sensing has improved the sensing performance. ...
Soft combination requires higher bandwidth for reporting channels against hard combining and 2-D WD leads to greater processing complexity & time at FC. ...
doi:10.17485/ijst/2015/v8i16/64746
fatcat:bgcrepzawvhfncyohz7blbtxaq
REVIEW OF ENERGY DETECTION FOR SPECTRUM SENSING IN VARIOUS CHANNELS AND ITS PERFORMANCE FOR COGNITIVE RADIO APPLICATIONS
2012
American Journal of Engineering and Applied Sciences
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Spectrum sensing is the basic and important operation in Cognitive Radio (CR) to find the unused spectrum. ...
It clearly shows that the probability of missing detection decreases for increasing the number of antennas in cognitive node and also increasing of cooperated cognitive users. ...
No CSIT, perfect CSIR • AWGN channel, Rayleigh block fading channel (channels gains are constant over the block period) and Nakagami fading channel are considered for sensing • Cognitive Radio based nodes ...
doi:10.3844/ajeassp.2012.151.156
fatcat:xwnfj7xlnzct3ppgyhhmh7uvqa
Exploiting multiuser diversity for spectrum sensing in cognitive radio networks
2010
2010 IEEE Radio and Wireless Symposium (RWS)
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We propose a cooperative spectrum sensing strategy for cognitive radio networks that exploits the fading diversity among secondary users to improve the probability of correct detection of a primary transmitter ...
Due to multipath fading, users in the network experience peak channel quality at different times. ...
In cooperative sensing, secondary users at different locations sense the channel independently and send their observations to a fusion center. ...
doi:10.1109/rws.2010.5434164
fatcat:6w7s225wzjch7lmqvvoyicy5va
Minimizing the Detection Error in Cooperative Spectrum Sensing using Teaching Learning Based Optimization(TLBO)
2017
International Journal of Engineering Research and
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Cooperative spectrum sensing is a key technology in cognitive radio networks (CRNs) to detect spectrum holes by combining sensing result of multiple cognitive radio users. ...
Cognitive radio (CR) is a new paradigm in wireless communication system which is use for efficient utilization of radio frequency (RF) spectrum or RF channel for future wireless communication. ...
ACKNOWLEDGMENT The author wish to thank their guide, parents and god for supporting and motivating for this work because without their blessing this was not possible. ...
doi:10.17577/ijertv6is020273
fatcat:zyoo2hzqfzhuhkvhf3yp2xunqi
Soft Combination and Detection for Cooperative Spectrum Sensing in Cognitive Radio Networks
2007
IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference
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In this letter, we consider cooperative spectrum sensing based on energy detection in cognitive radio networks. ...
Based on the Neyman-Pearson criterion, we obtain an optimal soft combination scheme that maximizes the detection probability for a given false alarm probability. ...
Therefore, we only consider energy detection for spectrum sensing throughout this letter. Spectrum sensing is a tough task because of shadowing, fading, and time-varying natures of wireless channels. ...
doi:10.1109/glocom.2007.594
dblp:conf/globecom/MaL07
fatcat:j33ciycjwbakjo4ecc3ddhzgpe
Soft Combination and Detection for Cooperative Spectrum Sensing in Cognitive Radio Networks
2008
IEEE Transactions on Wireless Communications
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In this letter, we consider cooperative spectrum sensing based on energy detection in cognitive radio networks. ...
Based on the Neyman-Pearson criterion, we obtain an optimal soft combination scheme that maximizes the detection probability for a given false alarm probability. ...
Therefore, we only consider energy detection for spectrum sensing throughout this letter. Spectrum sensing is a tough task because of shadowing, fading, and time-varying natures of wireless channels. ...
doi:10.1109/t-wc.2008.070941
fatcat:ccnic36cbfa7hekolmobujpxk4
Soft Decision Cooperative Spectrum Sensing with Entropy Weight Method for Cognitive Radio Sensor Networks
2020
IEEE Access
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To solve the above problems, a soft decision cooperative spectrum sensing with entropy weight method for cognitive radio sensor networks is presented. ...
After receiving the soft sensing information from all member nodes, the cluster heads employs the equal gain soft combination for inter-cluster fusion and then forwards the local decision to the fusion ...
[15] proposed a cooperative spectrum sensing algorithm with weighted soft fusion, and allocate the sensing nodes with high SNR or low channel gain in term of the coordinator, proportion of the sensing ...
doi:10.1109/access.2020.3001006
fatcat:w332e2x2nzg2bg47ryz2v26nvi
Weighted Soft Decision for Cooperative Sensing in Cognitive Radio Networks
[article]
2010
arXiv
pre-print
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In this paper, we introduce a new cooperative spectrum sensing technique which considers the spatial variation of secondary (unlicensed) users and each user's contribution is weighted by a factor that ...
Among all the spectrum accessing techniques, sensing based methods are considered optimal for their simplicity and cost effectiveness. ...
COOPERATIVE SPECTRUM SENSING IN FADING/SHADOWING ENVIRONMENT Fig. 2 depicts a spectrum sensing scenario for cognitive radio (CR) networks. ...
arXiv:1005.0697v1
fatcat:xhhnfqisozf33humvfhn7s5ecm
A Cooperative Spectrum Sensing Scheme Using Fuzzy Logic for Cognitive Radio Networks
2010
KSII Transactions on Internet and Information Systems
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This paper proposes a novel scheme for cooperative spectrum sensing on distributed cognitive radio networks. ...
Simulation results show that significant improvement of the spectrum sensing accuracy is achieved by our schemes. ...
In [8] , a new combining scheme for cognitive spectrum sensing based on fuzzy logic has been proposed. ...
doi:10.3837/tiis.2010.06.006
fatcat:6h6vexne7fajpemhxnjbzjhn2i
Application of Fuzzy Logic to Cognitive Radio Systems
2009
IEICE transactions on communications
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This paper reviews applications of fuzzy logic to telecommunications and proposes a novel fuzzy combining scheme for cooperative spectrum sensing in cognitive radio systems. ...
The results indicate that fuzzy logic can be used in cooperative spectrum sensing to provide additional flexibility to existing combining methods. key words: cognitive radio, cooperative sensing, efficient ...
for Technology and Innovation (Tekes) (decision number 40028/08). ...
doi:10.1587/transcom.e92.b.3572
fatcat:ajwyrnzj4ndubdladsra4oo47a
Distributed Consensus-Based Weight Design for Cooperative Spectrum Sensing
2015
IEEE Transactions on Parallel and Distributed Systems
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In this paper, we study the distributed spectrum sensing in cognitive radio networks. ...
Index Terms-Cooperative spectrum sensing, weighted average consensus, cognitive radio networks Ç W. Zhang is with Western Digital Corporation, ...
Second, we apply weighted consensus-based distributed weighted soft combining method in cooperative spectrum sensing. ...
doi:10.1109/tpds.2014.2307951
fatcat:wt2f2shqvjgfxlr3uut5g2s5rm
Performance comparison of centralised and distributed CSS over fading channels in cognitive radio
2017
Cogent Engineering
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To solve the problem of hidden terminal and shadowing in non-cooperative spectrum sensing, cooperative spectrum sensing (CSS) is used. ...
In this paper comparison of centralised and distributed CSS is presented and a cluster based distributed CSS is proposed over fading channel with different fusion rules and effect of number of CR users ...
Conclusion In this paper, the performance of centralised and distributed cooperative spectrum sensing is compared over different fading channels. ...
doi:10.1080/23311916.2017.1355599
fatcat:pjvsui5vbrarvnajxvb274gpgu
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