Interference management in frequency, time, and space domains for cognitive radios

Marko Höyhtyä; Tao Chen; Aarne Mämmelä

doi:10.1109/WTS.2009.5068968

Interference management in frequency, time, and space domains for cognitive radios

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

4 Citations (Scopus)

Abstract

In order to minimize interference with primary users (PU), cognitive radios should operate multidimensionally over time, frequency, and space. This paper addresses the problem with power control and predictive frequency selection. Both the methods are coupled with spectrum sensing. The proposed frequency selection method minimizes the amount of channel switches, which increases the capacity of the system and decreases the number of collisions with PUs. It is shown that the allowed transmission power of an SU scales linearly with increasing primary transmission power. The results illustrate the effect of the antenna height to the maximum power; a high-antenna PU transmitter allows more powerful SUs. Moreover, simulations indicate that the power control method reduces greatly the amount of interference imposed towards PUs.

Original language	English
Title of host publication	2009 Wireless Telecommunications Symposium
Publisher	IEEE Institute of Electrical and Electronic Engineers
ISBN (Electronic)	978-1-4244-2589-1
ISBN (Print)	978-1-4244-2588-4
DOIs	https://doi.org/10.1109/WTS.2009.5068968
Publication status	Published - 2009
MoE publication type	A4 Article in a conference publication
Event	Wireless Telecommunications Symposium, WTS 2009 - Prague, Czech Republic Duration: 22 Apr 2009 → 24 Apr 2009

Conference

Conference	Wireless Telecommunications Symposium, WTS 2009
Abbreviated title	WTS 2009
Country/Territory	Czech Republic
City	Prague
Period	22/04/09 → 24/04/09

Keywords

radiofrequency interference
power control
radio transmitters
cognitive radio
wireless channels

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10.1109/WTS.2009.5068968

Cite this

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title = "Interference management in frequency, time, and space domains for cognitive radios",

abstract = "In order to minimize interference with primary users (PU), cognitive radios should operate multidimensionally over time, frequency, and space. This paper addresses the problem with power control and predictive frequency selection. Both the methods are coupled with spectrum sensing. The proposed frequency selection method minimizes the amount of channel switches, which increases the capacity of the system and decreases the number of collisions with PUs. It is shown that the allowed transmission power of an SU scales linearly with increasing primary transmission power. The results illustrate the effect of the antenna height to the maximum power; a high-antenna PU transmitter allows more powerful SUs. Moreover, simulations indicate that the power control method reduces greatly the amount of interference imposed towards PUs.",

keywords = "radiofrequency interference, power control, radio transmitters, cognitive radio, wireless channels",

author = "Marko H{\"o}yhty{\"a} and Tao Chen and Aarne M{\"a}mmel{\"a}",

year = "2009",

doi = "10.1109/WTS.2009.5068968",

language = "English",

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booktitle = "2009 Wireless Telecommunications Symposium",

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TY - GEN

T1 - Interference management in frequency, time, and space domains for cognitive radios

AU - Höyhtyä, Marko

AU - Chen, Tao

AU - Mämmelä, Aarne

PY - 2009

Y1 - 2009

N2 - In order to minimize interference with primary users (PU), cognitive radios should operate multidimensionally over time, frequency, and space. This paper addresses the problem with power control and predictive frequency selection. Both the methods are coupled with spectrum sensing. The proposed frequency selection method minimizes the amount of channel switches, which increases the capacity of the system and decreases the number of collisions with PUs. It is shown that the allowed transmission power of an SU scales linearly with increasing primary transmission power. The results illustrate the effect of the antenna height to the maximum power; a high-antenna PU transmitter allows more powerful SUs. Moreover, simulations indicate that the power control method reduces greatly the amount of interference imposed towards PUs.

AB - In order to minimize interference with primary users (PU), cognitive radios should operate multidimensionally over time, frequency, and space. This paper addresses the problem with power control and predictive frequency selection. Both the methods are coupled with spectrum sensing. The proposed frequency selection method minimizes the amount of channel switches, which increases the capacity of the system and decreases the number of collisions with PUs. It is shown that the allowed transmission power of an SU scales linearly with increasing primary transmission power. The results illustrate the effect of the antenna height to the maximum power; a high-antenna PU transmitter allows more powerful SUs. Moreover, simulations indicate that the power control method reduces greatly the amount of interference imposed towards PUs.

KW - radiofrequency interference

KW - power control

KW - radio transmitters

KW - cognitive radio

KW - wireless channels

U2 - 10.1109/WTS.2009.5068968

DO - 10.1109/WTS.2009.5068968

M3 - Conference article in proceedings

SN - 978-1-4244-2588-4

BT - 2009 Wireless Telecommunications Symposium

PB - IEEE Institute of Electrical and Electronic Engineers

T2 - Wireless Telecommunications Symposium, WTS 2009

Y2 - 22 April 2009 through 24 April 2009

ER -

Interference management in frequency, time, and space domains for cognitive radios

Abstract

Conference

Keywords

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