Results 31 to 40 of about 44,065 (274)
Cognitive Radio Networks for Internet of Things and Wireless Sensor Networks [PDF]
Sensors, 2020 Recent innovation, growth, and deployment of internet of things (IoT) networks are changing the daily life of people. 5G networks are widely deployed around the world, and they are important for continuous growth of IoT. The next generation cellular networks and wireless sensor networks (WSN) make the road to the target of the next generation IoT ...
Heejung Yu, Yousaf Bin Zikria
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Delay optimal opportunistic pipeline routing scheme for cognitive radio sensor networks
International Journal of Distributed Sensor Networks, 2018 In order to solve the problem of spectrum scarcity in wireless sensor networks, cognitive radio technology can be introduced into wireless sensor networks, giving rising to cognitive radio sensor networks.
Anfeng Liu, Wei Chen, Xiao Liu
doaj +1 more source
Techno-economic evaluation of cognitive radio in a factory scenario [PDF]
, 2011 Wireless applications gradually enter every aspect of our life. Unfortunately, these applications must reuse the same scarce spectrum, resulting in increased interference and limited usability.
Ballon, Pieter +8 more
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International Journal of Distributed Sensor Networks, 2018 In wireless sensor networks, time synchronization is an important issue for all nodes to have a unified time. The wireless sensor network nodes should cooperatively adjust their local time according to certain distributed synchronization algorithms to ...
Qi Yang +3 more
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On the Construction of Radio Environment Maps for Cognitive Radio Networks
, 2013 The Radio Environment Map (REM) provides an effective approach to Dynamic Spectrum Access (DSA) in Cognitive Radio Networks (CRNs). Previous results on REM construction show that there exists a tradeoff between the number of measurements (sensors) and ...
Feng, Zhiyong +4 more
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Cognitive Adaptive Medium Access Control in Cognitive Radio Sensor Networks
IEEE Transactions on Vehicular Technology, 2015 Spectrum sensing is an integral part of medium access control (MAC) in cognitive radio (CR) networks as its reliability determines the success of transmission. However, it is an energy-consuming operation that needs to be minimized for CR sensor networks (CRSNs) due to resource scarcity.
Shah, Ghalib A., Akan, Ozgur B.
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In-Network Data Aggregation for Ad Hoc Clustered Cognitive Radio Wireless Sensor Network
Sensors, 2021 In cognitive radio wireless sensor networks (CRSN), the nodes act as secondary users. Therefore, they can access a channel whenever its primary user (PU) is absent. Thus, the nodes are assumed to be equipped with a spectrum sensing (SS) module to monitor
Mohamad Rida Mortada +3 more
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One-Bit Spectrum Sensing in Cognitive Radio Sensor Networks [PDF]
Circuits, Systems, and Signal Processing, 2019 This paper proposes a spectrum sensing algorithm from one bit measurements in a cognitive radio sensor network. A likelihood ratio test (LRT) for the one bit spectrum sensing problem is derived. Different from the one bit spectrum sensing research work in the literature, the signal is assumed to be a discrete random correlated Gaussian process, where ...
Hadi Zayyani +2 more
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Distributed compressed wideband sensing in Cognitive Radio Sensor Networks [PDF]
2011 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2011 A novel distributed compressed wideband sensing scheme for Cognitive Radio Sensor Networks (CRSN) is proposed in this paper. Taking advantage of the distributive nature of CRSN, the proposed scheme deploys only one single narrowband sampler with ultra-low sampling rate at each nodes to accomplish the wideband spectrum sensing.
Zhang, Huazi +2 more
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Sustainability Enhancement Multihop Clustering in Cognitive Radio Sensor Networks
International Journal of Distributed Sensor Networks, 2015 A cognitive radio based hybrid data-type clustering (CR-HDC) algorithm is proposed to maximize network energy efficiency of cognitive radio (CR) sensor networks (CRSNs).
Jong-Hong Park +2 more
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