Results 221 to 230 of about 85,911 (275)

Cooperative spectrum sensing based on the compressed sensing

2015 IEEE 14th International Conference on Cognitive Informatics & Cognitive Computing (ICCI*CC), 2015
In this paper, compressed sensing is applied to cooperative spectrum sensing to reduce the number of fused data. As the modification of OR fusion, DOR fusion is proposed as merger method to deal with information from different cognitive users. And then we analyze the relationship of detection performance and the number of users.
Yongkui Ma, Jiaxin Liu, Yulong Gao
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Sensing-throughput tradeoff in cooperative spectrum sensing

2012 IEEE Globecom Workshops, 2012
In the current literature on cognitive radio, it is commonly assumed that fixed time durations are assigned for spectrum sensing and data transmission. It is however possible to improve the performance by finding the best tradeoff between sensing time and network throughput.
Mohsen Nader Tehrani, Murat Uysal
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Optimal Number of Cooperators in the Cooperative Spectrum Sensing Schemes

Circuits, Systems, and Signal Processing, 2017
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K. C. Sriharipriya, K. Baskaran
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Cooperative spectrum sensing with energy harvesting

Telecommunication Systems, 2019
In cognitive radio networks, secondary nodes should sense the channel using spectrum sensing algorithms to detect primary activity. When primary user (PU) is idle, secondary users opportunistically transmit over this frequency hole. In this paper, we provide the detection probability (DP) of the energy detector (ED) for wireless energy harvesting ...
Raed Alhamad, Hatem Boujemaa
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Cooperative spectrum sensing with noncoherent transmission

2012 IEEE International Conference on Communications (ICC), 2012
The problem of decision fusion for cooperative spectrum sensing in cognitive radio networks is studied when noisy fading channels are present between the cognitive radios (CRs) and the fusion center (FC). The CRs perform spectrum sensing using energy detection and transmit their binary decisions to the FC for a final decision on the absence or presence
Simin Bokharaiee, Ha H. Nguyen 0001, Ed Shwedyk   +2 more
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On energy detection for cooperative spectrum sensing

2012 46th Annual Conference on Information Sciences and Systems (CISS), 2012
Energy detection has been used almost exclusively in spectrum sensing. This paper studies the potential optimality (or sub-optimality) of the energy detector in spectrum sensing for two systems: one employing a single node and the other using multiple nodes, i.e., cooperative spectrum sensing.
Peng, Fangrong, Chen, Hao, Chen, Biao
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Cooperative Spectrum Sensing With Location Information

IEEE Transactions on Vehicular Technology, 2012
In this paper, we address the problem of cooperatively detecting a primary user (PU) among multiple cognitive users (CUs) when their location information is available at a CU base station. For fast detection, each CU reports a power estimate, based on one-snapshot observation of the radio environment, to the CU base station.
Ning Han, Hongbin Li 0001
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Cooperative spectrum sensing in LTE networks

2014 IEEE 27th Canadian Conference on Electrical and Computer Engineering (CCECE), 2014
Expanding the new technologies such as Long Term Evolution (LTE) has caused spectrum scarcity. Spectrum sensing can help LTE find other available frequencies to use as secondary user. There are many solutions to enhance the spectrum sensing. In this paper, we are looking at frequency bands in TV broadcasting spectrum as a suitable candidate to be used ...
Gelareh Kokabian, Amir Esmailpour
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An energy-efficient cooperative spectrum sensing

2015 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom), 2015
In this work, the energy consumption in the cooperative spectrum sensing is analysed. The analysis also covers the detection quality assessment and the definition of the energy efficiency (EE) metric. It is shown how cooperation among the sensing nodes affects the EE and how relaying of sensing information and node selection influences the detection ...
Krzysztof Cichon, Hanna Bogucka
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Cooperative Spectrum Sensing

2014
The main objective of this chapter is to provide a detailed technical insight into latest key aspects of cooperative spectrum sensing. We focus on fusion strategies, quantization enhancements, effect of imperfect reporting channel, cooperative spectrum sensing scheduling, and utilizing cooperatively sensed data via Radio Environment Map (REM).
H. Birkan Yilmaz, Salim Eryigit, Tuna Tugcu   +2 more
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