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Experimental implementation of dynamic spectrum access for video transmission using USRP

Tahir, Mohammad and Mohamad, Hafizal and Ramli, Nordin and Jarot, Sigit Puspito Wigati (2012) Experimental implementation of dynamic spectrum access for video transmission using USRP. In: International Conference on Computer and Communication Engineering (ICCCE 2012), 3-5 July 2012, Seri Pacific Hotel Kuala Lumpur.

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Abstract

In this paper we present the experimental implementation of dynamic spectrum access (DSA) algorithm using universal software radio peripheral (USRP) and GNU Radio. The setup contains two primary users and two cognitive radios or secondary users. One primary user is fixed and the other is allowed to change its position randomly. Depending upon the position of the primary user the cognitive user will use the spectrum band where the detected energy is below certain predefined threshold level. The cognitive radio users are also programmed to operate independently without interfering with each other using energy detection algorithm for spectrum sensing. The modulation scheme is set to GMSK for secondary user performing data transmission. This experimental setup is used to analyze the quality of video transmission using DSA which provides the insight regarding the possibility of using free spectrum space to improve the performance of the system and its advantage over a non-DSA system. From the experiment it is shown that under congestion and interference DSA perform better than a non- DSA system.

Item Type: Conference or Workshop Item (Full Paper)
Additional Information: 5681/29004
Uncontrolled Keywords: Cognitive radio; dynamic spectrum access; IEEE 802.22; energy detection; USRP; GNU Radio.
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering
Depositing User: Yusnizar Fuad
Date Deposited: 14 Feb 2013 08:26
Last Modified: 14 Feb 2013 08:26
URI: http://irep.iium.edu.my/id/eprint/29004

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