Results 231 to 240 of about 12,490 (287)

On energy detection for cooperative spectrum sensing [PDF]

open access: yes2012 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
openaire   +3 more sources

Energy-Efficient Cooperative Spectrum Sensing: A Survey

IEEE Communications Surveys and Tutorials, 2016
The article analyzes the problem of energy efficient techniques in cooperative spectrum sensing (CSS). Although it was proven that single-device sensing is not sufficient for reliable sensing, cooperative spectrum sensing was proposed, burdened, however, with great overhead.
Krzysztof Cichon   +2 more
exaly   +2 more sources

Cooperative Spectrum Sensing for Geo-Location Databases [PDF]

open access: yes, 2012
Spectrum sensing techniques are the key components for identifying and exploiting unused radio spectrum resources in the perspective of the cognitive radio paradigm. Based on the centralized cooperative sensing techniques, vast generalized databases named geo-location databases (GL-DB) can be deployed in order to centralize sensing and general radio ...
Mauro Fadda   +3 more
openaire   +3 more sources

Privacy-preserving aggregation for cooperative spectrum sensing [PDF]

open access: yesJournal of Network and Computer Applications, 2019
Abstract Cognitive radio technology has been proposed as a promising way to alleviate spectrum scarcity. In cognitive radio networks, cooperative spectrum sensing is an effective approach to improve spectrum-estimation accuracy. In this approach, a fusion center (FC) outsources sensing tasks to secondary users (SUs), and aggregates sensing reports ...
Yali Zeng   +4 more
openaire   +2 more sources

Performance of Cooperative Spectrum Sensing over Non-Identical Fading Environments [PDF]

open access: yesIEEE Transactions on Communications, 2011
Different from previous works in cooperative spec- trum sensing that assumed the sensing channels independent identically distributed (i.i.d.), we investigate in this paper the independent but not identically distributed (i.n.i.d.) situations.
Mohamed-Slim Alouini
exaly   +2 more sources

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
openaire   +1 more source

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
openaire   +1 more source

Optimal Number of Cooperators in the Cooperative Spectrum Sensing Schemes

Circuits, Systems, and Signal Processing, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
K. C. Sriharipriya, K. Baskaran
openaire   +2 more sources

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
openaire   +1 more source

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