NDLI: A Novel Centralized Network for Sensing Spectrum in Cognitive Radio

Content Provider	IEEE Xplore Digital Library
Author	Hongjian Sun Laurenson, D.I. Thompson, J.S. Cheng-Xiang Wang
Copyright Year	2008
Description	Author affiliation: Sch. of Eng. & Electron., Univ. of Edinburgh, Edinburgh (Hongjian Sun; Laurenson, D.I.; Thompson, J.S.)
Abstract	Spectrum sensing plays a paramount role in cognitive radio (CR), which is widely agreed to be the most promising method for alleviating the symptom of RF spectral scarcity. In this paper, we first analyze the effects of multipath/shadowing on a CR system. Furthermore, we build models for the primary user system and the CR user system separately. For the former model, we develop the possible conversation zone to represent the CR cooperative detectable zone. For the latter model, we construct a novel centralized network, called the spider-net sensing network (SNSN), to implement controllable sensing resolution and reliable sensing while avoiding harmful interference from other CR users. Finally, the numerical results show that our proposed SNSN outperforms one without a grid structure using the same combining scheme.
Starting Page	4186
Ending Page	4190
File Size	383265
Page Count	5
File Format	PDF
ISBN	9781424420759
DOI	10.1109/ICC.2008.786
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-19
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cognitive radio Chromium Radio frequency Matched filters Signal to noise ratio RF signals Signal processing Image processing Interference FCC
Content Type	Text
Resource Type	Article

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