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MAC: Protocols for Cognitive Radio Sensor Networks and their Comparision
2018
International Journal of Trend in Scientific Research and Development
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Cognitive Radio (CR) is an adaptive, intelligent radio and network technology that can automatically detect available channels in a wireless spectrum and make those channels available for concurrent transmissions ...
Dynamic spectrum access in the form of cognitive radio provides spectrum efficient communication for all WSNs which led to the development of Cognitive Radio Sensor Networks (CRSNs). ...
Many kinds of literature are available for cognitive radio network and its MAC protocol but not much survey on CRSN's MAC layer. ...
doi:10.31142/ijtsrd17060
fatcat:yfbdekg3bzhq7mqgtzhmgzibve
Requirements of an Open Platform for Cognitive Networks Experiments
2008
2008 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks
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Experimental research on networks of cognitive radios has been hindered by the lack of open, affordable cognitive radios and associated software that are capable of operating with the full network protocol ...
These include mechanisms for distributed spectrum sensing, a MAC protocol tailored to dynamic spectrum access, and interface languages for cognitive networks. ...
This article outlines the requirements of a cognitive radio platform that is flexible enough for fundamental research on cognitive radios and cognitive networks and that is widely available to the entire ...
doi:10.1109/dyspan.2008.49
fatcat:m2kg3b3wbbdhddi3cfawycxraq
Securing wireless medium access control against insider denial-of-service attackers
2015
2015 IEEE Conference on Communications and Network Security (CNS)
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To defend against such insider threats, we propose a resourcebased channel access scheme that holds the attacker accountable for its channel reservation. ...
In a wireless network, users share a limited resource in bandwidth. ...
NSF CNS-0953600 and by the Human-Centered Cyberphysical Systems Programme at the Advanced Digital Sciences Center from Singapores Agency for Science, Technology and Research (A*STAR). ...
doi:10.1109/cns.2015.7346848
dblp:conf/cns/ChangHL15
fatcat:ys5d5nphnrfdzb3m2slqyoeh5e
Carrier aggregation for LTE-advanced mobile communication systems
2010
IEEE Communications Magazine
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His research interests span the physical layer key technologies of HSPA+ and LTE+ systems, with emphasis on MIMO joint detection, carrier aggregation, and network coding in wireless networks. ...
Figure 2 . 2 Propagation path loss in different frequency and communication environments, radio channel model: extended Okumura Hata model, communication distance: 1 km, UE antenna height: 1.5 m. ...
doi:10.1109/mcom.2010.5402669
fatcat:f3za55j5efb7vgd5qdy2oilzim
Efficient architecture mapping of FFT/IFFT for cognitive radio networks
2014
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
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Cognitive radio networks require flexibility to support a variety of wireless communication system standards. ...
In this paper, we propose a highly flexible FFT/IFFT architecture that can support a broad variety of transform sizes and efficient mapping to programmable testbed platforms for cognitive radio networks ...
Flexibility and reconfigurability to support different system configurations with variable bandwidths and modulation schemes are also required in cognitive radio networks and SDR systems. ...
doi:10.1109/icassp.2014.6854339
dblp:conf/icassp/WangYCCBT14
fatcat:ou6wxathd5dwroaqiztyri4gci
SAMER: Spectrum Aware Mesh Routing in Cognitive Radio Networks
2008
2008 3rd IEEE Symposium on New Frontiers in Dynamic Spectrum Access Networks
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In this paper we present SAMER, a routing solution for cognitive radio mesh networks. ...
Cognitive radio technology holds great promises in enabling unlicensed operation in licensed bands, to meet the increasing demand for radio spectrum. ...
SYSTEM MODEL Our system model considers an underlying distributed cognitive radio architecture where PHY and MAC layer platforms work in concert to provide collaborative spectrum sensing and adaptive management ...
doi:10.1109/dyspan.2008.90
fatcat:ftkmgmr7rbdutclhxymewe6bjm
HC-MAC: A Hardware-Constrained Cognitive MAC for Efficient Spectrum Management
2008
IEEE Journal on Selected Areas in Communications
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A decentralized MAC protocol is then proposed for the ad hoc cognitive radio networks. Simulation results are presented to demonstrate the effectiveness of our proposed protocol. ...
In this paper, we discuss how to conduct efficient spectrum management in ad hoc cognitive radio networks while taking the hardware constraints (e.g., single radio, partial spectrum sensing and spectrum ...
There are several ad-hoc model MAC protocols for cognitive radio in academic research projects. ...
doi:10.1109/jsac.2008.080110
fatcat:igkaswdcrrgahlwcfq6viupcge
Two Phase Spectrum Sharing for Frequency-Agile Radio Networks
2009
2009 IEEE International Conference on Communications
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TWSR together provide a
the bandwidth of wireless channels are predefined and pro- systematic treatment for the inherently cross-layer problem
grammed into radio firmware. ...
systems where only the channel number/central frequency of
software defined radio and cognitive radios) enable more a radio is determined, spectrum sharing among frequency-
flexible spectrum ...
doi:10.1109/icc.2009.5199547
dblp:conf/icc/FengY09
fatcat:d7zu53josreu7asljgzwb55qcy
Towards converged, collaborative and co-automatic (3C) optical networks
2018
Science China Information Sciences
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We discuss the challenges, timely works, and developing trends. Finally, we give the future visions for optical network towards a collaborative, converged and co-automatic optical network. ...
The interconnection of all things is developing a new diagram of future information networks. However, it is difficult to realize future applications with only one single technique. ...
Large-capacity, low-latency, and high-flexibility are three requirements for optical fronthaul networks. ...
doi:10.1007/s11432-018-9551-8
fatcat:vu5dj7mh3ve4xoh2g3kxnhdaha
A Novel DSA-Driven MAC Protocol for Cognitive Radio Networks
2009
Wireless Sensor Network
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Fortunately, the emergence of open spectrum and dynamic spectrum assess (DSA) technology in cognitive radio networks relieves this problem. ...
In this paper, we propose a novel DSA-driven cognitive MAC protocol to achieve highly efficient spectrum usage and QoS provisioning. ...
In this paper, we propose a branch and bound algorithm, which is more suitable for the channel allocation optimization problem in cognitive radio networks than the general one. ...
doi:10.4236/wsn.2009.12017
fatcat:u23fiehlmnfczfesx6mqpbk53y
Cognitive PHY and MAC layers for dynamic spectrum access and sharing of TV bands
2006
Proceedings of the first international workshop on Technology and policy for accessing spectrum - TAPAS '06
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a few, are key to the success of future cognitive radio (CR) systems and have received little attention so far. ...
In this paper we address these questions by presenting the design and performance evaluation of a CR-based PHY and MAC for DSA and DSS of vacant television (TV) channels. ...
COGNITIVE PHY AND MAC LAYERS The distinctive and most critical requirement for the 802.22 air interface is flexibility and adaptability. ...
doi:10.1145/1234388.1234391
fatcat:ubpuhe47mbacnaj4ugv4s7tw34
First Cognitive Radio Networking Standard for Personal/Portable Devices in TV White Spaces
2010
2010 IEEE Symposium on New Frontiers in Dynamic Spectrum (DySPAN)
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In this paper we present the first such standard for personal/portable devices in the TVWS that complies fully with the existing FCC rules while retaining flexibility for use with other regulatory domains ...
We describe the physical (PHY) and medium access control (MAC) layers specified in the standard and present performance results to demonstrate the robustness and spectral efficiency of the proposed protocols ...
This standard supports flexible network formation with three types of devices: master devices, slave devices, and peer devices. ...
doi:10.1109/dyspan.2010.5457855
fatcat:y5omoo7de5ajtjfpfn2of2xli4
5G technology: towards dynamic spectrum sharing using cognitive radio networks
2020
IEEE Access
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Moreover, a detailed survey on cognitive radio (CR) technology in SS related to 5G implementation is performed. ...
For a complete survey, discussions are conducted on the issues and challenges in the current implementation of SS and CR, and the means to support efficient 5G advancement are provided. ...
These challenges can be addressed with the Dynamic Channel Reservation (DCR) algorithm and Dynamic Spectrum Access (DSA) scheme with three access privilege variations to explore the advantages of channel ...
doi:10.1109/access.2020.2966271
fatcat:cobdo5ucibcdpc5jfecbdwhni4
Enabling emergency communication through a cognitive radio vehicular network
2014
IEEE Communications Magazine
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Post-disaster communication involves providing communication service for public users and emergency responders. ...
The responding personnel and rescue activities demand delivery guarantees, bandwidth reservation, delay constraints, or other forms of QoS support, while public communication places less stringent demands ...
The cognitive radio enabled vehicles (CRVs) that form this network can forward data among themselves, forming a mobile backhaul network, or they may connect with roadside base stations (BSs) for offloading ...
doi:10.1109/mcom.2014.6917404
fatcat:bzsvm3px7fafhhuwfzz3b6wlti
Study of tv white spaces in the context of cognitive radio for the deployment of WiFi in rural zones of the colombian army
2020
Espacios
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The study analyzes regulatory aspects and technical equipment to provide a free internet access solution. Video transmission was experimentally validated, using OFDM with USRP N210 radios. ...
With this preliminary analysis, it was possible to understand how the PHY and MAC layers of the 802.22 Standard work to select the appropriate devices. ...
Research Groups of the Universidad Pedagógica y Tecnológica de Colombia for the financial support during this research work. ...
doi:10.48082/espacios-a20v41n50p12
fatcat:zsjs6azbdfdh5e5mfzxklgk5f4
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