Demonstration of Hybrid Overlay/Underlay Waveform Generator With Spectrally Compliant Cognitive Capability via SD-SMSE Framework

Paul Rose; Ruolin Zhou; Yang Qu; Vasu Chakarvarthy; Zhiqiang Wu; Zhiping Zhang

doi:10.1109/CCNC.2016.7444769

Demonstration of Hybrid Overlay/Underlay Waveform Generator With Spectrally Compliant Cognitive Capability via SD-SMSE Framework

Paul Rose, Ruolin Zhou, Yang Qu, Vasu Chakarvarthy, Zhiqiang Wu, Zhiping Zhang

Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this paper, a software defined radio (SDR) based waveform generator platform with spectrally compliant cognitive capability for cognitive radio (CR) and dynamic spectrum access (DSA) network is demonstrated. In our previous work, an overlay CR has been demonstrated via a spectrally modulated spectrally encoded (SMSE) framework to autonomously stitch unused spectrum fragments and transmit over non-contiguous frequency bands in a dynamically changing environment. Such an overlay CR can coexist with primary users (PUs) and other secondary users (SUs) without harmful interference by turning off the subcarriers which are shared with active PUs and other SUs on the band. To further enhance spectrum usage, we extend it and implement a hybrid overlay/underlay waveform generator via a soft-decision SMSE (SD-SMSE) framework, where both unused and under-used spectra are explored. Specifically, the hybrid overlay/underlay waveform can transmit over not only unused spectrum bands, but also under-used spectrum and share the spectrum with active PUs and other SUs by underlaying them, since PU/SU has certain capability to tolerant interference as long as the underlay transmission power is lower than such a interference tolerance level (ITL). On the other hand, if any active SU on the band is not a friendly transmission, the hybrid waveform can easily increase the transmission power underlaying with the SU much higher than the ITL to fully disrupt the unfriendly transmission. Moreover, the proposed platform is capable of generating conventional single-carrier waveform with different modulation schemes and radio frequency (RF) parameters. Therefore, the platform implements many desirable functions, realizes coexistence with PUs and other SUs or unfriendly transmission disruption, and maximizes the spectrum efficiency, as well as provides a testbed for cognitive radio and cognitive RF research and development.

Original language	English
Title of host publication	2016 13th IEEE Annual Consumer Communications and Networking Conference
Publisher	IEEE
Pages	258-259
Number of pages	2
ISBN (Electronic)	978-1-4673-9292-1, 978-1-4673-9291-4
DOIs	https://doi.org/10.1109/CCNC.2016.7444769
State	Published - Mar 31 2016
Event	13th IEEE Annual Consumer Communications and Networking Conference, CCNC 2016 - Las Vegas, United States Duration: Jan 6 2016 → Jan 13 2016

Conference

Conference	13th IEEE Annual Consumer Communications and Networking Conference, CCNC 2016
Country/Territory	United States
City	Las Vegas
Period	1/6/16 → 1/13/16

ASJC Scopus Subject Areas

Computer Science Applications
Computer Networks and Communications
Hardware and Architecture

Keywords

Modulation
Hybrid power systems
Cognitive radio
Interference
Radio frequency
Signal generators
Conferences

Disciplines

Electrical and Computer Engineering

Access to Document

10.1109/CCNC.2016.7444769License: Unspecified

Cite this

Rose, P, Zhou, R, Qu, Y, Chakarvarthy, V, Wu, Z & Zhang, Z 2016, Demonstration of Hybrid Overlay/Underlay Waveform Generator With Spectrally Compliant Cognitive Capability via SD-SMSE Framework. in 2016 13th IEEE Annual Consumer Communications and Networking Conference., 7444769, IEEE, pp. 258-259, 13th IEEE Annual Consumer Communications and Networking Conference, CCNC 2016, Las Vegas, United States, 1/6/16. https://doi.org/10.1109/CCNC.2016.7444769

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title = "Demonstration of Hybrid Overlay/Underlay Waveform Generator With Spectrally Compliant Cognitive Capability via SD-SMSE Framework",

abstract = " In this paper, a software defined radio (SDR) based waveform generator platform with spectrally compliant cognitive capability for cognitive radio (CR) and dynamic spectrum access (DSA) network is demonstrated. In our previous work, an overlay CR has been demonstrated via a spectrally modulated spectrally encoded (SMSE) framework to autonomously stitch unused spectrum fragments and transmit over non-contiguous frequency bands in a dynamically changing environment. Such an overlay CR can coexist with primary users (PUs) and other secondary users (SUs) without harmful interference by turning off the subcarriers which are shared with active PUs and other SUs on the band. To further enhance spectrum usage, we extend it and implement a hybrid overlay/underlay waveform generator via a soft-decision SMSE (SD-SMSE) framework, where both unused and under-used spectra are explored. Specifically, the hybrid overlay/underlay waveform can transmit over not only unused spectrum bands, but also under-used spectrum and share the spectrum with active PUs and other SUs by underlaying them, since PU/SU has certain capability to tolerant interference as long as the underlay transmission power is lower than such a interference tolerance level (ITL). On the other hand, if any active SU on the band is not a friendly transmission, the hybrid waveform can easily increase the transmission power underlaying with the SU much higher than the ITL to fully disrupt the unfriendly transmission. Moreover, the proposed platform is capable of generating conventional single-carrier waveform with different modulation schemes and radio frequency (RF) parameters. Therefore, the platform implements many desirable functions, realizes coexistence with PUs and other SUs or unfriendly transmission disruption, and maximizes the spectrum efficiency, as well as provides a testbed for cognitive radio and cognitive RF research and development.",

keywords = "Modulation, Hybrid power systems, Cognitive radio, Interference, Radio frequency, Signal generators, Conferences",

author = "Paul Rose and Ruolin Zhou and Yang Qu and Vasu Chakarvarthy and Zhiqiang Wu and Zhiping Zhang",

note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 13th IEEE Annual Consumer Communications and Networking Conference, CCNC 2016 ; Conference date: 06-01-2016 Through 13-01-2016",

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AU - Rose, Paul

AU - Zhou, Ruolin

AU - Qu, Yang

AU - Chakarvarthy, Vasu

AU - Wu, Zhiqiang

AU - Zhang, Zhiping

PY - 2016/3/31

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N2 - In this paper, a software defined radio (SDR) based waveform generator platform with spectrally compliant cognitive capability for cognitive radio (CR) and dynamic spectrum access (DSA) network is demonstrated. In our previous work, an overlay CR has been demonstrated via a spectrally modulated spectrally encoded (SMSE) framework to autonomously stitch unused spectrum fragments and transmit over non-contiguous frequency bands in a dynamically changing environment. Such an overlay CR can coexist with primary users (PUs) and other secondary users (SUs) without harmful interference by turning off the subcarriers which are shared with active PUs and other SUs on the band. To further enhance spectrum usage, we extend it and implement a hybrid overlay/underlay waveform generator via a soft-decision SMSE (SD-SMSE) framework, where both unused and under-used spectra are explored. Specifically, the hybrid overlay/underlay waveform can transmit over not only unused spectrum bands, but also under-used spectrum and share the spectrum with active PUs and other SUs by underlaying them, since PU/SU has certain capability to tolerant interference as long as the underlay transmission power is lower than such a interference tolerance level (ITL). On the other hand, if any active SU on the band is not a friendly transmission, the hybrid waveform can easily increase the transmission power underlaying with the SU much higher than the ITL to fully disrupt the unfriendly transmission. Moreover, the proposed platform is capable of generating conventional single-carrier waveform with different modulation schemes and radio frequency (RF) parameters. Therefore, the platform implements many desirable functions, realizes coexistence with PUs and other SUs or unfriendly transmission disruption, and maximizes the spectrum efficiency, as well as provides a testbed for cognitive radio and cognitive RF research and development.

AB - In this paper, a software defined radio (SDR) based waveform generator platform with spectrally compliant cognitive capability for cognitive radio (CR) and dynamic spectrum access (DSA) network is demonstrated. In our previous work, an overlay CR has been demonstrated via a spectrally modulated spectrally encoded (SMSE) framework to autonomously stitch unused spectrum fragments and transmit over non-contiguous frequency bands in a dynamically changing environment. Such an overlay CR can coexist with primary users (PUs) and other secondary users (SUs) without harmful interference by turning off the subcarriers which are shared with active PUs and other SUs on the band. To further enhance spectrum usage, we extend it and implement a hybrid overlay/underlay waveform generator via a soft-decision SMSE (SD-SMSE) framework, where both unused and under-used spectra are explored. Specifically, the hybrid overlay/underlay waveform can transmit over not only unused spectrum bands, but also under-used spectrum and share the spectrum with active PUs and other SUs by underlaying them, since PU/SU has certain capability to tolerant interference as long as the underlay transmission power is lower than such a interference tolerance level (ITL). On the other hand, if any active SU on the band is not a friendly transmission, the hybrid waveform can easily increase the transmission power underlaying with the SU much higher than the ITL to fully disrupt the unfriendly transmission. Moreover, the proposed platform is capable of generating conventional single-carrier waveform with different modulation schemes and radio frequency (RF) parameters. Therefore, the platform implements many desirable functions, realizes coexistence with PUs and other SUs or unfriendly transmission disruption, and maximizes the spectrum efficiency, as well as provides a testbed for cognitive radio and cognitive RF research and development.

KW - Modulation

KW - Hybrid power systems

KW - Cognitive radio

KW - Interference

KW - Radio frequency

KW - Signal generators

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BT - 2016 13th IEEE Annual Consumer Communications and Networking Conference

PB - IEEE

T2 - 13th IEEE Annual Consumer Communications and Networking Conference, CCNC 2016

Y2 - 6 January 2016 through 13 January 2016

ER -

Demonstration of Hybrid Overlay/Underlay Waveform Generator With Spectrally Compliant Cognitive Capability via SD-SMSE Framework

Abstract

Conference

ASJC Scopus Subject Areas

Keywords

Disciplines

Access to Document

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