Cognitive Code-Division Channelization with Admission Control

We consider the problem of joint resource allocation and admission control in a secondary code-division network coexisting with a narrowband primary system. Our objective is to find the maximum number of admitted secondary links and then find the optimal transmitting powers and code sequences of tho...

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Main Authors: Kanke Gao, Onur Ozdemir, Dimitris A. Pados, Stella N. Batalama, Tommaso Melodia, Andrew L. Drozd
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Journal of Computer Networks and Communications
Online Access:http://dx.doi.org/10.1155/2012/510942
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author Kanke Gao
Onur Ozdemir
Dimitris A. Pados
Stella N. Batalama
Tommaso Melodia
Andrew L. Drozd
author_facet Kanke Gao
Onur Ozdemir
Dimitris A. Pados
Stella N. Batalama
Tommaso Melodia
Andrew L. Drozd
author_sort Kanke Gao
collection DOAJ
description We consider the problem of joint resource allocation and admission control in a secondary code-division network coexisting with a narrowband primary system. Our objective is to find the maximum number of admitted secondary links and then find the optimal transmitting powers and code sequences of those secondary links such that the total energy consumption of the secondary network is minimized subject to the conditions that primary interference temperature constraints, secondary signal-to-interference-plus-noise ratio (SINR) constraints and secondary peak power constraints are all satisfied. This is an NP-hard optimization problem which motivates the development of suboptimal algorithms. We propose a novel iterative algorithm to solve this problem in a computationally efficient manner. Numerical results demonstrate that the proposed algorithm provides excellent solutions that result in high energy efficiency and large admitted percentage of secondary links.
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institution Kabale University
issn 2090-7141
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language English
publishDate 2012-01-01
publisher Wiley
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series Journal of Computer Networks and Communications
spelling doaj-art-64ed3c4227424948817940456dec95842025-02-03T01:26:07ZengWileyJournal of Computer Networks and Communications2090-71412090-715X2012-01-01201210.1155/2012/510942510942Cognitive Code-Division Channelization with Admission ControlKanke Gao0Onur Ozdemir1Dimitris A. Pados2Stella N. Batalama3Tommaso Melodia4Andrew L. Drozd5Department of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USAANDRO Computational Solutions, 7902 Turin Road Bldg. 2, Rome, NY 13440, USADepartment of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USADepartment of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USADepartment of Electrical Engineering, The State University of New York at Buffalo, Buffalo, NY 14260, USAANDRO Computational Solutions, 7902 Turin Road Bldg. 2, Rome, NY 13440, USAWe consider the problem of joint resource allocation and admission control in a secondary code-division network coexisting with a narrowband primary system. Our objective is to find the maximum number of admitted secondary links and then find the optimal transmitting powers and code sequences of those secondary links such that the total energy consumption of the secondary network is minimized subject to the conditions that primary interference temperature constraints, secondary signal-to-interference-plus-noise ratio (SINR) constraints and secondary peak power constraints are all satisfied. This is an NP-hard optimization problem which motivates the development of suboptimal algorithms. We propose a novel iterative algorithm to solve this problem in a computationally efficient manner. Numerical results demonstrate that the proposed algorithm provides excellent solutions that result in high energy efficiency and large admitted percentage of secondary links.http://dx.doi.org/10.1155/2012/510942
spellingShingle Kanke Gao
Onur Ozdemir
Dimitris A. Pados
Stella N. Batalama
Tommaso Melodia
Andrew L. Drozd
Cognitive Code-Division Channelization with Admission Control
Journal of Computer Networks and Communications
title Cognitive Code-Division Channelization with Admission Control
title_full Cognitive Code-Division Channelization with Admission Control
title_fullStr Cognitive Code-Division Channelization with Admission Control
title_full_unstemmed Cognitive Code-Division Channelization with Admission Control
title_short Cognitive Code-Division Channelization with Admission Control
title_sort cognitive code division channelization with admission control
url http://dx.doi.org/10.1155/2012/510942
work_keys_str_mv AT kankegao cognitivecodedivisionchannelizationwithadmissioncontrol
AT onurozdemir cognitivecodedivisionchannelizationwithadmissioncontrol
AT dimitrisapados cognitivecodedivisionchannelizationwithadmissioncontrol
AT stellanbatalama cognitivecodedivisionchannelizationwithadmissioncontrol
AT tommasomelodia cognitivecodedivisionchannelizationwithadmissioncontrol
AT andrewldrozd cognitivecodedivisionchannelizationwithadmissioncontrol