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Interference Aggregation in Spectrum-Sensing Cognitive Wireless Networks
The increasing demand for the radio spectrum along with the inefficient usage of the licensed bands has led the regulatory bodies to consider opening up the under-utilized licensed frequency bands for dynamic access by unlicensed users. Such dynamic spectrum access is envisioned to resolve the spect...
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Published in: | IEEE journal of selected topics in signal processing 2008-02, Vol.2 (1), p.41-56 |
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description | The increasing demand for the radio spectrum along with the inefficient usage of the licensed bands has led the regulatory bodies to consider opening up the under-utilized licensed frequency bands for dynamic access by unlicensed users. Such dynamic spectrum access is envisioned to resolve the spectrum scarcity by allowing unlicensed users to opportunistically utilize the white spaces across the licensed spectrum on a non-interfering basis. Cognitive radio networks offer a promising realization of this novel paradigm, thanks to their ability to autonomously identify the white spaces through spectrum sensing. Implementation of such networks, however, requires a model translating the regulatory constraint on the aggregate interference to the system-and device-level design parameters. In this paper a statistical model of interference aggregation in spectrum-sensing cognitive radio networks is developed. In particular, distribution of the aggregate interference is characterized in terms of parameters such as sensitivity, transmitted power, and density of the cognitive radios as well as the underlying propagation environment. The model is further extended to account for the effect of cooperative spectrum sensing on the distribution of the aggregate interference. |
doi_str_mv | 10.1109/JSTSP.2007.914897 |
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The model is further extended to account for the effect of cooperative spectrum sensing on the distribution of the aggregate interference.</description><subject>Agglomeration</subject><subject>Aggregate interference</subject><subject>Aggregates</subject><subject>Cognitive radio</subject><subject>Detection</subject><subject>Dynamics</subject><subject>FCC</subject><subject>Frequency</subject><subject>Interference</subject><subject>Licenses</subject><subject>Mathematical models</subject><subject>Networks</subject><subject>Power system modeling</subject><subject>Radio</subject><subject>Radio networks</subject><subject>Radio spectrum management</subject><subject>Spectrum allocation</subject><subject>spectrum sensing</subject><subject>White spaces</subject><subject>Wireless networks</subject><subject>Wireless sensor networks</subject><issn>1932-4553</issn><issn>1941-0484</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kbFOwzAQhiMEEqXwAIglYkAsKT7HcewRVUCLKkBKEaOVuJfIpXWKnYB4exKCGBiY7obvv9OvLwhOgUwAiLy6z5bZ04QSkk4kMCHTvWAEkkFEmGD7_R7TiCVJfBgceb8mJEk5sFEwm9sGXYkOrcbwuqocVnljahsaG2Y71I1rt1GG1htbhdO6sqYx7xi-GIcb9D58wOajdq_-ODgo843Hk585Dp5vb5bTWbR4vJtPrxeRZpQ2ES91KUhKkOYCC8JACi5ZmWvJE17QhNEEV0xCCkBJsdKU5LkoARE1SlHIeBxcDHd3rn5r0Tdqa7zGzSa3WLdexSwhMo5FB17-CwJPgXIglHfo-R90XbfOdjWU4FSA4Lx_DAOkXe29w1LtnNnm7lMBUb0D9e1A9Q7U4KDLnA0Z0xX45RlLYiFE_AVEy4Kh</recordid><startdate>20080201</startdate><enddate>20080201</enddate><creator>Ghasemi, A.</creator><creator>Sousa, E.S.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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source | IEEE Electronic Library (IEL) Journals |
subjects | Agglomeration Aggregate interference Aggregates Cognitive radio Detection Dynamics FCC Frequency Interference Licenses Mathematical models Networks Power system modeling Radio Radio networks Radio spectrum management Spectrum allocation spectrum sensing White spaces Wireless networks Wireless sensor networks |
title | Interference Aggregation in Spectrum-Sensing Cognitive Wireless Networks |
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