Results 11 to 20 of about 12,490 (287)
Advanced Energy Detector Based Cooperative Spectrum Sensing In Cognitive Networks [PDF]
MATEC Web of Conferences, 2016 Cognitive radio is a befitting hopeful technology for future. Spectrum sensing is the most critical function of cognitive radio. Most of the spectrums sensing processes proposed earlier become impractical at lower signal to noise ratio conditions.
Ritu, Seehra Ameeta
doaj +4 more sources
ON THE LOCATION-AWARE COOPERATIVE SPECTRUM SENSING IN URBAN ENVIRONMENT [PDF]
Jordanian Journal of Computers and Information Technology, 2016 Spectrum sensing is a key enabling technology for cognitive radio networks (CRNs). The main objective of spectrum sensing is to provide more spectrum access opportunities to cognitive radio users without interfering with the operations of the licensed ...
Raouf Abozariba +3 more
doaj +4 more sources
Performance analysis and optimization of cooperative spectrum sensing with relay [PDF]
Tongxin xuebao, 2013 An object based cooperative spectrum sensing scheme with relay was proposed,and the fact that the channel condition from SU to SR has an important influence to system performance was proved.In view of this,an optimized cooperative spectrum sensing scheme
Mei-ling LI
doaj +5 more sources
Cooperative sensing of spectrum opportunities [PDF]
, 2015 Reliability and availability of sensing information gathered from local spectrum sensing (LSS) by a single Cognitive Radio is strongly affected by the propagation conditions, period of sensing, and geographical position of the device. For this reason, cooperative spectrum sensing (CSS) was largely proposed in order to improve LSS performance by using ...
CASO, GIUSEPPE +3 more
openaire +3 more sources
Cooperative Spectrum Sensing in Cognitive Wireless Sensor Networks [PDF]
International Journal of Distributed Sensor Networks, 2015 Cognitive wireless sensor network (CWSN) is a combination of cognitive radio and wireless sensor networks (WSNs), which can effectively solve spectrum resource scarcity problem in WSNs.
Xue Zhang +3 more
doaj +2 more sources
Cooperative spectrum sensing detector based on generalized eigenvalue [PDF]
Tongxin xuebao, 2013 The available eigenvalue based cooperative spectrum sensing detectors require that the primary signals among sensing nodes were correlated.A maximum generalized eigenvalue based cooperative spectrum sensing detector was proposed.The proposed detector ...
Ming JIN, You-ming LI, Yang GAO
doaj +2 more sources
IEEE Access, 2020 Cooperative spectrum sensing can be regarded as a promising method to resolve the spectrum scarcity owing to achieving spatial diversity gain in cognitive radio sensor networks.
Xianquan Luo
doaj +1 more source
Cognitive node selection and assignment algorithms for weighted cooperative sensing in radar systems [PDF]
, 2009 For the radar spectrum to be shared efficiently a good sensing capability within a secondary cognitive communication system is required. In this paper, the swept radar's rotation mechanism is explored to improve the sensing performance.
Williams, C +7 more
core +1 more source
A Secure and Anonymous Cooperative Sensing Protocol for Cognitive Radio Networks [PDF]
, 2011 Spectrum is an essential resource for the provision of mobile services. In order to control and delimit its use, governmental agencies set up regulatory policies.
Helena Rifà-Pous +3 more
core +1 more source
Egyptian Informatics Journal, 2022 Rapid spectrum usage in wireless networks may reduce energy efficiency, requiring cognitive radio networks to be more efficient than conventional ones.
Kaleem Arshid +7 more
doaj +1 more source