Providing Disruption QoS in an OFDM System Using Residual Idle Time Based Opportunistic Spectrum Access

Published

December 3, 2013

Author(s)

Anirudha Sahoo, Michael R. Souryal, Mudumbai Ranganathan

Abstract

Dynamic spectrum access (DSA) is emerging as a promising technology to mitigate spectrum scarcity caused by static frequency allocation. Among the different models proposed for DSA, opportunistic spectrum access (OSA) is a promising class of solutions. In any DSA system, it is important to make sure that the performance of primary users (PUs) does not degrade significantly as a result of dynamic use of spectrum by secondary users (SUs). One of the main reasons for slow commercial adoption of OSA technology is the lack of system implementations which can demonstrate bounding interference to PUs below a given threshold. In this paper, we report a preliminary implementation of an OSA scheme which can ensure that the interference to the PU is bounded. We present our experience and challenges in building this system using the open source software toolkit GNU Radio on a software defined radio (SDR) implemented with a Universal Software Radio Peripheral (USRP).

Proceedings Title

IEEE

Conference Dates

December 3-5, 2013

Conference Location

Austin, TX

Conference Title

IEEE Global Conference on Signal and Information Processing

Pub Type

Conferences

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Keywords

dynamic spectrum access, QoS, Interference constraint, software defined radio dynamic spectrum access, QoS, Interference constraint, software defined radio dynamic spectrum access, QoS, Interference constraint, software defined radio dynamic spectrum access, QoS, Interference constraint, software defined radio

Citation

Sahoo, A. , Souryal, M. and Ranganathan, M. (2013), Providing Disruption QoS in an OFDM System Using Residual Idle Time Based Opportunistic Spectrum Access, IEEE, Austin, TX, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=914483 (Accessed October 28, 2025)