Filters








696 Hits in 8.2 sec

The Area Under a Receiver Operating Characteristic Curve Over Enriched Multipath Fading Conditions [article]

Paschalis C. Sofotasios, Mulugeta K. Fikadu, Khuong Ho-Van, Mikko Valkama, George K. Karagiannidis
2016 arXiv   pre-print
This type of fading conditions are characterized efficiently by the well known Nakagami-q or Hoyt distribution and the proposed analysis is carried out in the context of the area under the receiver operating  ...  of energy detectors is, as expected, closely related to the value of the fading parameter q.  ...  The area under the ROC curve and complementary area under the ROC curve of the energy detector over Hoyt fading channels are analyzed in Section III.  ... 
arXiv:1505.03331v2 fatcat:oqriyip25fciteqziiy2ygluo4

The area under a receiver operating characteristic curve over enriched multipath fading conditions

Paschalis C. Sofotasios, Mulugeta K. Fikadu, Khuong Ho-Van, Mikko Valkama, George K. Karagiannidis
2014 2014 IEEE Global Communications Conference  
This type of fading conditions are characterized efficiently by the well known Nakagami−q or Hoyt distribution and the proposed analysis is carried out in the context of the area under the receiver operating  ...  of energy detectors is, as expected, closely related to the value of the fading parameter q.  ...  The area under the ROC curve and complementary area under the ROC curve of the energy detector over Hoyt fading channels are analyzed in Section III.  ... 
doi:10.1109/glocom.2014.7037348 dblp:conf/globecom/SofotasiosFHVK14 fatcat:rhud3efdcvbpbdtzc5wh4rc45m

Detection and False Alarm Probabilities over Non-fading and Fading Environment

Abdullah Al Zubaer, Sabrina Ferdous, Rohani Amrin, Md. Romzan Ali, Md. Alamgir Hossain
2020 American Journal of Electrical and Computer Engineering  
as AWGN and Rayleigh fading channels.  ...  Indeed, the main motive of this project is to investigate performance of Co-operative spectrum sensing scheme by upgrade using energy detection and to promote/n the sensing performance in channels such  ...  Acknowledgements I acknowledge that I have received financial and technical support for this project from the Engineering Faculty, Rabindra Maitree University, Kushtia-7000, Bangladesh and Islamic University  ... 
doi:10.11648/j.ajece.20200402.13 fatcat:y6hy5bmolbcataohlhc2c4x2g4

Area under ROC curve of energy detection over generalized fading channels

Alireza Bagheri, Paschalis C. Sofotasios, Theodoros A. Tsiftsis, Ali Shahzadi, Steven Freear, Mikko Valkama
2015 2015 IEEE 26th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)  
To this end, analytical expressions are firstly derived using the area under the receiver operating characteristic curve (AUC) under additive white Gaussian noise.  ...  Since the detection capability of ED is largely affected by the effects of multipath fading, this paper is devoted to a thorough analysis of energy detection based spectrum sensing over generalized fading  ...  AREA UNDER ROC CURVE (AUC) ANALYSIS Closed-form expressions are derived for the average AUC over generalized fading channels.  ... 
doi:10.1109/pimrc.2015.7343380 dblp:conf/pimrc/BagheriSTSFV15 fatcat:wb6ea54u3bdctlrold5qgnxdi4

Simplified Performance Analysis Of Energy Detectors Over Myriad Fading Channels:Area Under The Roc Curve Approach

Shumon Alam
2012 International Journal of Wireless & Mobile Networks  
KEYWORDS Area under Curve, Diversity Combining, Energy Detector, Receiver Operating Characteristic (ROC) E K = 2, N1 = 7 K = 2, N2 = 5 K = 2, N1 = 7 K = 2, N2 = 7 K = 2, N1 = 32 K = 2, N2 = 11 K = 2, N1  ...  The detection performance is characterized by the area under the receiver operating characteristic (ROC) curve (AUC), which is a simple statistical performance measuring metric that varies between 0.5  ...  Such a measure is the area under the ROC curve (AUC) which varies between 0.5 (poor performance) and 1 (good performance) [5] .It is a single scalar value of expected performance and represents the probability  ... 
doi:10.5121/ijwmn.2012.4403 fatcat:z3tds4ditzecjf3tv4u4ttptjq

Sensing of Unknown Signals over Weibull Fading Conditions [article]

Paschalis C. Sofotasios, Mulugeta K. Fikadu, Khuong Ho-Van, Mikko Valkama
2015 arXiv   pre-print
This paper is devoted to the analytical evaluation of the performance of an energy detector over Weibull fading channels.  ...  As expected, the performance of the detector is highly dependent upon the severity of fading as even small variation of the fading parameters affect significantly the value of the average probability of  ...  Motivated by this, the present work is devoted to the analytical performance evaluation of energy detection over narrowband Weibull fading channels.  ... 
arXiv:1505.03700v1 fatcat:7553rwvdl5dkji4w3cvlqrc5z4

Multiple Antenna-Aided Spectrum Sensing Using Energy Detectors for Cognitive Radio [chapter]

Seung-Hoon Hwang, Jun-Ho Baek
2011 Vehicular Technologies: Increasing Connectivity  
P M Figure 4-6 shows only simulative results of three antennas aided energy detector under Suzuki fading channel in terms of Complementary ROC curve, other parameter same as before.  ...  Figure 4 4 -1 shows the simulated and theoretical complementary ROC curves, for a conventional Energy Detector under the various fading environments with average SNR=6dB.  ...  This chapter is distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike-3.0 License, which permits use, distribution and reproduction for non-commercial purposes, provided  ... 
doi:10.5772/15767 fatcat:z5tho2mfnzcwrnoffyixrkuuaa

Spectrum Sensing for Cognitive Vehicular Networks over Composite Fading

Haroon Rasheed, Nandana Rajatheva
2011 International Journal of Vehicular Technology  
This paper examines the performance of spectrum sensing using ED over Gamma-shadowed Nakagami-m composite fading channel to cater for both small-and-large scale fading.  ...  The results highlight the notable impact of shadowing spread and fading severity on detection performance.  ...  In the second scenario, detector performance is evaluated by means of complementary ROC curves similar to [10] , that is, P m versus P f where P m = 1 − P d .  ... 
doi:10.1155/2011/630467 fatcat:fn5wtzx3ufcz3fl3b3utld5evq

Optimization of Energy Detection in Cognitive Radio Networks
English

Pavithra K P
2014 International Journal of Computer Trends and Technology  
2014 iv To my mother, father, brothers and sisters with love v ACKNOWLEDGMENTS I would like to thank KFUPM for giving me the opportunity to obtain the master degree and their support in the research work  ...  AWGN and Rayleigh Fading Channels Nakagami Fading Channel Lognormal Shadowing Channel Figure 3-5: ROC curves for ED under Lognormal channel with three cooperating SUs and = 2 dB The ROC curve of  ...  Figure 3 - 4 34 ROC curves for ED under Nakagami channel with three cooperating SUs and m= 2 The ROC curve of three cooperating SUs for ED using PSO algorithm under Nakagami fading channel with fading  ... 
doi:10.14445/22312803/ijctt-v12p102 fatcat:kzroqgos3nd2fhhk6koto7toum

Unified Analysis of Low-SNR Energy Detection and Threshold Selection

Saman Atapattu, Chintha Tellambura, Hai Jiang, Nandana Rajatheva
2015 IEEE Transactions on Vehicular Technology  
The analysis includes novel expressions for missed-detection probability and area under the receiver operating characteristic (ROC) curve.  ...  Under such low-SNR levels, the performance of a conventional energy detector is analyzed in this paper.  ...  The area under the ROC curve is the AUC, which varies between 0.5 and 1.  ... 
doi:10.1109/tvt.2014.2381648 fatcat:wakxw3q7jvh3jjdy3vp4omq66q

Performance Evaluation of Energy Detection in Spectrum Sensing for Cascaded Multihop Networks over Nakagami-n fading channel

Deepti Kakkar, Arun Khosla, Moin Uddin
2013 International Journal of Grid and Distributed Computing  
This paper evaluates the sensing performance of energy detector in multihop networks over Nakagami-n fading channels.  ...  The spectrum sensing is an important activity of cognitive radios over fading channels. A proper sensing performance depends upon the fading margin and number of relays within a wireless link.  ...  Deepti is currently pursuing her research in Cognitive Radios towards completion of her PhD from Dr. B.R. Ambedkar National Institute of Technology, Jalandhar, India.  ... 
doi:10.14257/ijgdc.2013.6.5.06 fatcat:p6a5mh7zcnbp7gxhj2gtklvjom

Efficient Performance Analysis of Spectrum Sensing for Cascaded Multihop Network over Nagakami-m Fading Channels

Deepti Kakkar, Arun Khosla, Moin Uddin
2014 Engineering  
Performance evaluation of spectrum sensing in infrastructure based multihop network is very hard to achieve because of the adverse effects of channel fading.  ...  In the analysis, multihop model based on relays are considered over independent and not identically distributed (i.n.i.d) wireless channels.  ...  Further, results clearly include evaluation of P d under different channel conditions with variable m.  ... 
doi:10.4236/eng.2014.62010 fatcat:nvwslcp37vahdkg6klvpgpdlbm

Weighted Soft Decision for Cooperative Sensing in Cognitive Radio Networks [article]

Mohammad Iqbal Bin Shahid, Joarder Kamruzzaman
2010 arXiv   pre-print
Moreover, this cooperative technique uses very simple energy detector as its building block thereby reduces the cost and operational complexity.  ...  On the contrary, recent studies suggest that many portions of the licensed spectrum remains unused or underused for significant period of time raising the issue of spectrum access without license in an  ...  The complementary ROC curves in Fig. 6 indicate the performance superiority of WC over EGC in case of Nakagami fading.  ... 
arXiv:1005.0697v1 fatcat:xhhnfqisozf33humvfhn7s5ecm

A Mixture Gamma Distribution to Model the SNR of Wireless Channels

Saman Atapattu, Chintha Tellambura, Hai Jiang
2011 IEEE Transactions on Wireless Communications  
With this model, performance metrics such as the average channel capacity, the outage probability, the symbol error rate (SER), and the detection capability of an energy detector are readily derived.  ...  Composite fading (i.e., multipath fading and shadowing together) has increasingly been analyzed by means of the channel and related models.  ...  ACKNOWLEDGMENTS The authors would like to thank the Editor Dr. Man-On Pun and the anonymous reviewers for their constructive comments which improve the presentation of this paper.  ... 
doi:10.1109/twc.2011.111210.102115 fatcat:aqfghgrjunexbgzh3q3ikmfyea

A New Wireless Network Scheme for Spectrum Sensing in Cognitive Radio

Serkan Ozbay, Ergun Ercelebi
2015 Elektronika ir Elektrotechnika  
After sensing, the added noise is removed without affecting existing transmission on the channel.  ...  Then the sensing detector becomes insensitive to signal and noise types, and thus noise uncertainty problem is diminished.  ...  Totally 100,000 sets each of which includes 200 samples have been used in the performance analysis. Fig. 2 . 2 ROC curves at dB SNR 8   under AWGN channel.  ... 
doi:10.5755/j01.eie.21.6.13769 fatcat:jwyayvn6xjawrkk54hpqd37i44
« Previous Showing results 1 — 15 out of 696 results