Optimization of a QoS-Aware channel assignment for cognitive radio networks

Hooman  Razavi; Abdorasoul Ghasemi

doi:10.1109/ISTEL.2014.7000776

Optimization of a QoS-Aware channel assignment for cognitive radio networks

Hooman Razavi, Abdorasoul Ghasemi

K.N.Toosi University of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding › peer-review

5 Citations (Scopus)

Abstract

The channel assignment problem is an important issue in cognitive radio networks because the conventional fixed spectrum allocation mechanism leads to significant spectrum underutilization. In this paper, the QoS-aware channel assignment is formulated as an optimization problem. The objective is to maximize the utilization of spectrum opportunities and fairness among secondary users (SUs) subject to constraints of different SUs demands, spectrum levels of the QoS and channel availabilities for each SU. Designing the QoS-Aware channel assignment scheme is based on genetic algorithm (GA) and quantum genetic algorithm (QGA). Two different objective functions are proposed as the network utilization and fairness indexes. Simulation results are provided to show the efficiency of the proposed method.

Original language	English
Title of host publication	7th International Symposium on Telecommunications (IST'2014)
Publisher	IEEE
Pages	602-607
Number of pages	6
ISBN (Electronic)	978-1-4799-5359-2, 978-1-4799-5358-5
DOIs	https://doi.org/10.1109/ISTEL.2014.7000776
Publication status	Published - 8 Jan 2015
Externally published	Yes
Event	7th International Symposium on Telecommunications - Tehran, Iran, Islamic Republic of Duration: 9 Sept 2014 → 11 Sept 2014

Conference

Conference	7th International Symposium on Telecommunications
Abbreviated title	IST 2014
Country/Territory	Iran, Islamic Republic of
City	Tehran
Period	9/09/14 → 11/09/14

Keywords

Channel Assignment
Cognitive radio
Evolutionary Algorithms
Optimization
QoS-Aware

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10.1109/ISTEL.2014.7000776

Cite this

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title = "Optimization of a QoS-Aware channel assignment for cognitive radio networks",

abstract = "The channel assignment problem is an important issue in cognitive radio networks because the conventional fixed spectrum allocation mechanism leads to significant spectrum underutilization. In this paper, the QoS-aware channel assignment is formulated as an optimization problem. The objective is to maximize the utilization of spectrum opportunities and fairness among secondary users (SUs) subject to constraints of different SUs demands, spectrum levels of the QoS and channel availabilities for each SU. Designing the QoS-Aware channel assignment scheme is based on genetic algorithm (GA) and quantum genetic algorithm (QGA). Two different objective functions are proposed as the network utilization and fairness indexes. Simulation results are provided to show the efficiency of the proposed method.",

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AU - Ghasemi, Abdorasoul

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N2 - The channel assignment problem is an important issue in cognitive radio networks because the conventional fixed spectrum allocation mechanism leads to significant spectrum underutilization. In this paper, the QoS-aware channel assignment is formulated as an optimization problem. The objective is to maximize the utilization of spectrum opportunities and fairness among secondary users (SUs) subject to constraints of different SUs demands, spectrum levels of the QoS and channel availabilities for each SU. Designing the QoS-Aware channel assignment scheme is based on genetic algorithm (GA) and quantum genetic algorithm (QGA). Two different objective functions are proposed as the network utilization and fairness indexes. Simulation results are provided to show the efficiency of the proposed method.

AB - The channel assignment problem is an important issue in cognitive radio networks because the conventional fixed spectrum allocation mechanism leads to significant spectrum underutilization. In this paper, the QoS-aware channel assignment is formulated as an optimization problem. The objective is to maximize the utilization of spectrum opportunities and fairness among secondary users (SUs) subject to constraints of different SUs demands, spectrum levels of the QoS and channel availabilities for each SU. Designing the QoS-Aware channel assignment scheme is based on genetic algorithm (GA) and quantum genetic algorithm (QGA). Two different objective functions are proposed as the network utilization and fairness indexes. Simulation results are provided to show the efficiency of the proposed method.

KW - Channel Assignment

KW - Cognitive radio

KW - Evolutionary Algorithms

KW - Optimization

KW - QoS-Aware

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PB - IEEE

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Optimization of a QoS-Aware channel assignment for cognitive radio networks

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Keywords

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