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Performance Analysis of TOA Range Accuracy Adaptation for Cognitive Radio Systems
2009
2009 IEEE 70th Vehicular Technology Conference Fall
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Therefore, in this paper, performance analysis of optimal maximum likelihood (ML) time of arrival (TOA) range accuracy adaptation technique is conducted to study performance limits of location aware systems ...
Location awareness is a prominent feature of cognitive radio (CR) systems. ...
Fig. 1 . 1 System model for range accuracy adaptation.
Fig. 2 . 2 Flowchart for the optimization in range accuracy adaptation.
Fig. 3 . 3 Performance of ML-TOA range accuracy adaptation. ...
doi:10.1109/vetecf.2009.5379054
dblp:conf/vtc/CelebiQA09
fatcat:qmkr2zn3pnantkmnkz3cso7kpm
Multiband Time-of-Arrival positioning technique for cognitive radio systems
2011
2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications
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Accurate information regarding a cognitive radio user's location and environment can enhance the adaptive and spectral awareness capabilities of cognitive radio systems. ...
In this paper, a single-path multiband Time-of-Arrival (TOA) positioning technique for cognitive radio is proposed and the performance evaluated using maximum-likelihood (ML) location estimation for a ...
This work was supported also by the European projects: ACROPOLIS (advanced coexistence technologies for radio optimization and unlicensed spectrum), and CROWN (cognitive radio oriented wireless networks ...
doi:10.1109/pimrc.2011.6139932
dblp:conf/pimrc/ThomasZKM11
fatcat:gde4k7p5sjbrfbchtgyk7dxriq
A Robust Range Accuracy Adaptation Criterion Based on Ziv-Zakai Lower Bound for Cognitive Positioning System
2016
TELKOMNIKA (Telecommunication Computing Electronics and Control)
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The bound plays a fundamental role for evaluating the performance of a specific TOA-based estimator. ...
The emergence of CR technologyprovides a new perspective for in-depth analysis of CPS.Compare to the traditional radio, the CR introduces two main different features, cognitive capability and reconfigurability ...
Acknowledgements This work was supported by the National Natural Science Foundation of China (61471077, 61301126), the Fundamental and Frontier Research Project of Chongqing (cstc2013jcyjA40034, cstc2013jcyjA40041 ...
doi:10.12928/telkomnika.v14i1.2345
fatcat:uyzxdvhzl5bvpgxzyn5vcyacyi
Localization and Privacy Preservation in Cognitive Radio Networks
2014
2014 8th International Conference on Future Generation Communication and Networking
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The objective is to provide a comprehensive analysis and guide of existing efforts around localization and location privacy preservation in cognitive radio network. ...
Cognitive Radio Networks (CRNs) has been considered as a key technology for future wireless communications and mobile computing. ...
The objective is to provide a comprehensive analysis and guide of existing efforts around localization and location privacy preservation in cognitive radio network. ...
doi:10.1109/fgcn.2014.19
fatcat:jmwm7gts45g3zjvhhleqxvt2gq
Cognitive-Radio Systems for Spectrum, Location, and Environmental Awareness
2010
IEEE Antennas & Propagation Magazine
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The capabilities of cognitive-radio systems for accurate characterization of operational environments are emphasized. These are crucial for efficient communications, localization, and radar systems. ...
In addition, the dynamic nature of cognitive-radio systems -including dynamic spectrum utilization, transmission, the propagation channel, and reception -is discussed, along with performance limits, challenges ...
In [2] , the range-accuracy adaptation featu�e of a cognitive positioning system was introduced without providing its performance analysis. ...
doi:10.1109/map.2010.5638235
fatcat:653pbgyljjdurdkgdpklrdazyy
Cooperative Localization in Wireless Ad Hoc and Sensor Networks
2008
EURASIP Journal on Advances in Signal Processing
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as enabling interference avoidance techniques in future cognitive radios. ...
Pahlavan where, based on empirical models of ultra-wideband width (UWB) time-of-arrival-(TOA-) based outdoor-to-indoor and indoor-to-indoor ranging, it provides cooperative localization bounds for WSNs ...
as enabling interference avoidance techniques in future cognitive radios. ...
doi:10.1155/2008/353289
fatcat:rjjxw2mga5axtmh54qkkynlfma
Low-Complexity Localization and Tracking in Hybrid Wireless Sensor Networks
2012
ISRN Sensor Networks
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speed-based algorithm for bounding the error. ...
over the radio channel. ...
Acknowledgments The authors wish to thank professor Dardari (University of Bologna) and Newcom++ project for providing the N++ WPR.B database. ...
doi:10.5402/2012/430169
fatcat:j3rjb4ho6nefhbxl4ys2yum34e
Cognitive and cooperative wireless networks
[chapter]
2012
The Newcom++ Vision Book
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These events culminated in the creation of the IEEE 802.22, developing a cognitive radio-based physical and medium access control layer for use by license-exempt devices on a non-interfering basis in spectrum ...
As a result of the above, one of the current research trends in the spectrum management are the so-called Dynamic Spectrum Access Networks (DSANs), in which unlicensed radios, denoted in this context as ...
The most accurate techniques to perform localization of a wireless terminal are based on time-of-arrival (TOA) estimation of a few radio ranging signals, followed by ranging and appropriate triangulation ...
doi:10.1007/978-88-470-1983-6_4
fatcat:cngxb7rv3nct3icecvoogrp6uy
Radio Context Awareness and Applications
2013
Journal of Sensors
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Radio context awareness is defined as the ability of detecting and estimating a system state or parameter, either globally or concerning one of its components, in a radio system for enhancing performance ...
In this paper, we review the fundamentals of context awareness and the recent advances in the main radio techniques that increase the context awareness and smartness, posing challenges and renewed opportunities ...
the fundamental, enabling function for the physical layer of cognitive radio systems [2, 3] . ...
doi:10.1155/2013/491092
fatcat:py4v42zy3rcjze4lt2lagvpb3i
An Overview on Integrated Localization and Communication Towards 6G
[article]
2020
arXiv
pre-print
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radio resources for dual purposes. ...
To achieve such goals, acquiring accurate location information of the mobile terminals is becoming extremely useful, not only for location-based services but also for improving wireless communication performance ...
For localization, the system needs to select the appropriate localization approaches and reference signals depending on the surrounding radio environments of the mobile devices for better performance. ...
arXiv:2006.01535v1
fatcat:s6jzbwogdrd73psev5ukj5oao4
Ranging With Ultrawide Bandwidth Signals in Multipath Environments
2009
Proceedings of the IEEE
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Ultrawide bandwidth (UWB) technology is a viable candidate for enabling accurate localization capabilities through time-of-arrival (TOA)-based ranging techniques. ...
These bounds serve as use-ful benchmarks in assessing the performance of TOA estimation techniques. ...
Cognitive ranging and localization: Cognitive radio is a promising technology for efficient utilization of the spectrum due to its capability to sense environmental conditions and adapt its communication ...
doi:10.1109/jproc.2008.2008846
fatcat:3nxcxznxfjg2tpnm3dmuhrma2u
A State-of-the-Art Survey on Multidimensional Scaling Based Localization Techniques
[article]
2019
arXiv
pre-print
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In this paper, a comprehensive survey is presented for MDS and MDS based localization techniques in WSNs, Internet of Things (IoT), cognitive radio networks, and 5G networks. ...
Most of the localization techniques require ranging measurements such as time of arrival (ToA), time difference of arrival (TDoA), direction of arrival (DoA) and received signal strength (RSS). ...
Following are the different ranging schemes for distance estimation. 1) Time of arrival (ToA) Estimation: ToA is one of the most widely used ranging techniques for positioning systems. ...
arXiv:1906.03585v1
fatcat:n2erdwcivfgflncbrunexyidwi
Multiuser Interference Mitigation in Noncoherent UWB Ranging via Nonlinear Filtering
2006
EURASIP Journal on Wireless Communications and Networking
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Simulations conducted over IEEE 802.15.4a residential line of sight ultrawideband multipath channels indicate that nonlinear filtering helps sustain range estimation accuracy in the presence of strong ...
Ranging with energy detectors enables low-cost implementation. However, any interference can be quite detrimental to range accuracy. ...
Molisch for their beneficial feedback and comments during the course of this work. We also thank our anonymous reviewers for their help to improve this presentation. ...
doi:10.1155/wcn/2006/56849
fatcat:6zb5fskgy5a6zm6osjz3imqjqq
A State-of-the-Art Survey on Multidimensional Scaling Based Localization Techniques
2019
IEEE Communications Surveys and Tutorials
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In this paper, a comprehensive survey is presented for MDS and MDS-based localization techniques in WSNs, IoT, cognitive radio networks, and 5G networks. ...
Most of the localization techniques require ranging measurements, such as time of arrival (ToA), time difference of arrival (TDoA), direction of arrival (DoA), and received signal strength (RSS). ...
Following are the different ranging schemes for distance estimation. 1) Time of Arrival (ToA) Estimation: ToA is one of the most widely used ranging techniques for positioning systems. ...
doi:10.1109/comst.2019.2921972
fatcat:5vaody5gybfproeakhrr5ch4eu
Energy Consummation in cognitive radio network using Different Methods
2019
International Journal of Engineering and Advanced Technology
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A combination of cognitive radio with resource allocation can further improve the future wireless network performance and reduces the energy consummation. ...
The cognitive radio and resource allocation techniques have been proposed for efficiently utilizing the radio resources. ...
It comes in different ranging such as AOA, TOA, TDOA, RSSI etc. ...
doi:10.35940/ijeat.b3383.129219
fatcat:scwxvgyo35euxoisu4xpou5dwe
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