Results 241 to 250 of about 85,658 (276)

Cooperative compressive wideband power spectrum sensing

2012 Conference Record of the Forty Sixth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2012
Compressive sampling is a popular approach to relax the rate requirement on the analog-to-digital converters and to perfectly reconstruct wideband sparse signals sampled below the Nyquist rate. However, there are some applications, such as spectrum sensing for cognitive radio, that demand only power spectrum recovery. For wide-sense stationary signals,
Dyonisius Dony Ariananda, Geert Leus
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Cooperative spectrum sensing for mobile users

2008 IEEE 16th Signal Processing, Communication and Applications Conference, 2008
Cognitive radio is a radio communication technique, where unlicensed or cognitive users monitor the spectrum for the existence of licensed (primary) users and have a communication capability when the primary users donpsilat transmit their data. This technique needs an effective spectrum sensing because of the not disturbing the primary users.
Ali Eksim, Selman Kulac, Murat H. Sazli
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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 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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Cooperative spectrum sensing in cognitive networks

TENCON 2008 - 2008 IEEE Region 10 Conference, 2008
In cognitive networks, cooperative spectrum sensing is employed to detect the presence of primary user quickly. The difference of sensing performance between totally cooperative networks and partially cooperative networks (network cooperation gain) is studied in this paper.
Yunxue Liu, Dongfeng Yuan, Mingyan Jiang, Hui Yu, Chunyuan Xu, Pingping Zhao   +5 more
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Optimization of Cooperation Sensing Spectrum Performance

2009 WRI International Conference on Communications and Mobile Computing, 2009
Cooperation spectrum sensing in cognitive radio networks has an analogy to a distributed decision in wireless sensor networks, where each sensor make local decision and those decision result are reported to a fusion center to give the final decision according to some fusion rules.
Deah J. Kadhim, Shimin Gong, Wei Liu, Wenqing Cheng   +3 more
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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 via coherence detection

2009 IEEE/SP 15th Workshop on Statistical Signal Processing, 2009
Efficient and reliable spectrum sensing plays a critical role in cognitive radio networks. This paper proposes a cooperative sensing scheme that detects the existence of a common signal component in the signals received by multiple geographically distributed radios.
Qiyue Zou, Songfeng Zheng, Ali H. Sayed
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Weighted-clustering cooperative spectrum sensing algorithm

ISWPC 2012 proceedings, 2012
Cooperative spectrum sensing has been widely used to detect the primary user with a high agility and accuracy. However, the limitation of control channel bandwidth is a challenge of cooperative spectrum sensing when the number of cognitive users becomes very large.
null kaizhi Peng, null zhongying Liu, null Lai Tu   +2 more
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Spectrum Sensing in Cogintive Radio Using Cooperative Spectrum Sensing

2023 Second International Conference on Electrical, Electronics, Information and Communication Technologies (ICEEICT), 2023
S Sivaranjani, Aarthi M, Aburva Sema I G, Anchanaa P, Femina Priyadharshini X   +4 more
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