NDLI: On the primary exclusive region of cognitive networks

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IEEE Transactions on Wireless Communications - Front cover

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On the primary exclusive region of cognitive networks

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Hybrid scheduling scheme for a cooperative relay system in heterogeneous traffic environments

On the capacity of κ-MPR wireless networks

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On the primary exclusive region of cognitive networks

Content Provider	IEEE Xplore Digital Library
Author	Mai Vu Devroye, N. Tarokh, V.
Copyright Year	2002
Abstract	We study a cognitive network consisting of a single primary transmitter and multiple secondary, or cognitive, users. The primary transmitter, located at the center of the network, communicates with primary receivers within a disc called the primary exclusive region (PER). Inside the PER, no cognitive users may transmit, in order to guarantee an outage probability for the primary receivers within. Outside the PER, uniformly distributed cognitive users may transmit, provided they are at a certain protected radius from a primary receiver. We analyze the aggregated interference from the cognitive transmitters to a primary receiver within the PER. Based on this interference and the outage guarantee, we derive bounds on the radius of the PER, showing its interdependence on the receiver protected distance and other system parameters. We also extend the analysis to allowing the cognitive users to scale their power according to the distance from the primary transmitter. These studies provide a closed-form, theoretical analysis of such a network geometry with PER, which may be relevant in the upcoming spectrum sharing actions.
File Size	918646
File Format	PDF
ISSN	15361276
Volume Number	8
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio transmitters Licenses Multiple access interference Power system protection Information geometry TV broadcasting Frequency measurement Sea measurements Time measurement White spaces Cognitive networks, exclusive regions, outage probability, primary and secondary transmissions, spectrum sharing, secondary access, TV bands.
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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