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Published in 2017 at "Journal of Network and Systems Management"
DOI: 10.1007/s10922-017-9429-9
Abstract: For the recent decade, cognitive radio networks have received much attention as an alternative to the traditional static spectrum allocation policy since the licensed spectrum channels are not being used efficiently. The most critical issue…
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Keywords:
framework;
market;
spectrum;
auction ... See more keywords
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Published in 2017 at "Wireless Networks"
DOI: 10.1007/s11276-015-1152-4
Abstract: Auction is often applied in cognitive radio networks due to its efficiency and fairness properties. An important issue in designing an auction mechanism is how to utilize the limited spectrum resource in an efficient manner.…
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Keywords:
methodology;
spectrum;
auction;
cognitive radio ... See more keywords
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Published in 2017 at "Wireless Networks"
DOI: 10.1007/s11276-016-1212-4
Abstract: Due to the mobility of node and different spectrum availability pattern, CR networks are frequently divided into unpredictable partitions. Usually, these partitions are irregularly connected; hence, secure and reliable routing becomes major issue for these…
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Keywords:
secure reliable;
routing cognitive;
reliable routing;
cognitive radio ... See more keywords
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Published in 2018 at "Wireless Networks"
DOI: 10.1007/s11276-017-1489-y
Abstract: AbstractEstablishing communications in a cognitive radio networks (CRNs) requires communicating nodes to “rendezvous” before transmitting their data packets. Channel hopping (CH) rendezvous algorithms can provide guaranteed rendezvous for CRNs without common control channels. A new…
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Keywords:
finite cover;
disjoint finite;
radio networks;
cognitive radio ... See more keywords
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Published in 2019 at "Wireless Networks"
DOI: 10.1007/s11276-018-1799-8
Abstract: AbstractAmid the dynamic spectrum access in cognitive radio networks, when complex spectrum conditions should be taken into account, how to price the spectrum in order to benefit primary systems in maximization is still under-investigated. In…
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Keywords:
spectrum pricing;
radio networks;
spectrum;
cognitive radio ... See more keywords
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Published in 2018 at "Wireless Personal Communications"
DOI: 10.1007/s11277-018-5871-6
Abstract: Cognitive radio networks (CRNs) have a shortcoming in that attackers can increase their ability to disturb secondary users (SUs). This paper focuses on jamming attacks in the physical layer, in which several attackers try to…
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Keywords:
data transmission;
hop;
hop data;
cognitive radio ... See more keywords
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Published in 2020 at "Wireless Personal Communications"
DOI: 10.1007/s11277-020-07027-5
Abstract: In this paper, we derive the packet error probability of cognitive radio networks. Our analysis is valid when the powers of secondary source and relays are adaptive. The secondary source and relays can adapt their…
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Keywords:
relay;
analysis;
cognitive radio;
radio networks ... See more keywords
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Published in 2021 at "Wireless Personal Communications"
DOI: 10.1007/s11277-021-08987-y
Abstract: In this paper, we suggest to optimize both power allocation coefficients, harvesting and sensing durations for cognitive radio networks using non orthogonal multiple access (CR-NOMA). In the first slot, secondary transmitter harvests energy from radio…
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Keywords:
networks using;
using non;
harvesting sensing;
radio ... See more keywords
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Published in 2018 at "Optimization Letters"
DOI: 10.1007/s11590-017-1119-8
Abstract: In usual cognitive radio networks with buffer settings, secondary user packets that are interrupted by primary user packets will return to the SU buffer for later retransmission. But this may increase the average delay of…
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Keywords:
retransmission control;
system;
returning threshold;
performance ... See more keywords
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Published in 2020 at "Ad Hoc Networks"
DOI: 10.1016/j.adhoc.2019.102035
Abstract: Abstract Cognitive Radio Networks (CRNs) have emerged as a promising next-generation network technology that solves the spectrum scarcity issue and improves spectrum utilization. It is designed to help grant access for unlicensed users and utilize…
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Keywords:
iot;
aware routing;
radio;
hop ... See more keywords
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Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2019.2906469
Abstract: Cognitive radio networks improve spectrum efficiency by employing vigilant and accurate spectrum management techniques. This is done to enable an unlicensed user to use the underutilized spectrum. Spectrum sensing determines if a spectrum hole exists…
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Keywords:
management techniques;
radio networks;
spectrum;
cognitive radio ... See more keywords