Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc Network

Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc Network

This paper studies the benefits that power control and antenna directivity can bring to the capacity of a multiuser cognitive radio network. The main objective is to optimize the secondary network sum rate under the capacity constraint of the primary network. Exploiting location awareness, antenna d...

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Bibliographic Details
Main Authors: S. Montejo, R. D. Souza, E. M. G. Fernandez, V. Alfonso.
Format: Article
Language:English
Published: Spolecnost pro radioelektronicke inzenyrstvi 2012-12-01
Series:Radioengineering
Subjects:
Cognitive radio
power control
location awareness
antenna directivity
Online Access:http://www.radioeng.cz/fulltexts/2012/12_04_1110_1116.pdf
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spelling doaj-892e44947fac4fab89099d84a7bc9e412020-11-25T00:25:43ZengSpolecnost pro radioelektronicke inzenyrstviRadioengineering1210-25122012-12-0121411101116Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc NetworkS. MontejoR. D. SouzaE. M. G. FernandezV. Alfonso.This paper studies the benefits that power control and antenna directivity can bring to the capacity of a multiuser cognitive radio network. The main objective is to optimize the secondary network sum rate under the capacity constraint of the primary network. Exploiting location awareness, antenna directivity, and the power control capability, the cognitive radio ad hoc network can broaden its coverage and improve capacity. Computer simulations show that by employing the proposed method the system performance is significantly enhanced compared to conventional fixed power allocation.www.radioeng.cz/fulltexts/2012/12_04_1110_1116.pdfCognitive radiopower controllocation awarenessantenna directivity
collection DOAJ
language English
format Article
sources DOAJ
author S. Montejo
R. D. Souza
E. M. G. Fernandez
V. Alfonso.
spellingShingle S. Montejo
R. D. Souza
E. M. G. Fernandez
V. Alfonso.
Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc Network
Radioengineering
Cognitive radio
power control
location awareness
antenna directivity
author_facet S. Montejo
R. D. Souza
E. M. G. Fernandez
V. Alfonso.
author_sort S. Montejo
title Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc Network
title_short Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc Network
title_full Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc Network
title_fullStr Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc Network
title_full_unstemmed Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc Network
title_sort impact of power allocation and antenna directivity in the capacity of a multiuser cognitive ad hoc network
publisher Spolecnost pro radioelektronicke inzenyrstvi
series Radioengineering
issn 1210-2512
publishDate 2012-12-01
description This paper studies the benefits that power control and antenna directivity can bring to the capacity of a multiuser cognitive radio network. The main objective is to optimize the secondary network sum rate under the capacity constraint of the primary network. Exploiting location awareness, antenna directivity, and the power control capability, the cognitive radio ad hoc network can broaden its coverage and improve capacity. Computer simulations show that by employing the proposed method the system performance is significantly enhanced compared to conventional fixed power allocation.
topic Cognitive radio
power control
location awareness
antenna directivity
url http://www.radioeng.cz/fulltexts/2012/12_04_1110_1116.pdf
work_keys_str_mv AT smontejo impactofpowerallocationandantennadirectivityinthecapacityofamultiusercognitiveadhocnetwork
AT rdsouza impactofpowerallocationandantennadirectivityinthecapacityofamultiusercognitiveadhocnetwork
AT emgfernandez impactofpowerallocationandantennadirectivityinthecapacityofamultiusercognitiveadhocnetwork
AT valfonso impactofpowerallocationandantennadirectivityinthecapacityofamultiusercognitiveadhocnetwork
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