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A closed-form of cooperative detection probability using EGC-based soft decision under Suzuki fading

Thai-Mai Thi Dinh, Quoc Tuan Nguyen, Kumbesan Sandrasegaran
2017 2017 11th International Conference on Signal Processing and Communication Systems (ICSPCS)  
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

Mohanad Abdulhamid
2018 Technological Engineering  
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

Abdul Haris Junus Ontowirjo, Department of Electrical Engineering, Faculty of Electrical Technology, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia, Wirawan Wirawan, Adi Soeprijanto
2019 Journal of Communications  
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

G. Padmavathi, S. Shanmugavel
2015 Indian Journal of Science and Technology  
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

M.
2012 American Journal of Engineering and Applied Sciences  
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

Tuan T. Do, Brian L. Mark
2010 2010 IEEE Radio and Wireless Symposium (RWS)  
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)

Keraliya Divyesh R, Ashalata Kulshrestha
2017 International Journal of Engineering Research and  
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

Jun Ma, Ye Geoffrey Li
2007 IEEE GLOBECOM 2007-2007 IEEE Global Telecommunications Conference  
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

Jun Ma, Guodong Zhao, Ye Li
2008 IEEE Transactions on Wireless Communications  
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

Haifeng Lin, Lin Du, Yunfei Liu
2020 IEEE Access  
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]

Mohammad Iqbal Bin Shahid, Joarder Kamruzzaman
2010 arXiv   pre-print
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

Thuc Kieu-Xuan
2010 KSII Transactions on Internet and Information Systems  
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

Marja MATINMIKKO, Tapio RAUMA, Miia MUSTONEN, Ilkka HARJULA, Heli SARVANKO, Aarne MÄMMELÄ
2009 IEICE transactions on communications  
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

Wenlin Zhang, Yi Guo, Hongbo Liu, Yingying Jennifer Chen, Zheng Wang, Joseph Mitola
2015 IEEE Transactions on Parallel and Distributed Systems  
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

Girraj Sharma, Ritu Sharma, Chau Yuen
2017 Cogent Engineering  
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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