Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/25964
Title: Secondary network connectivity of Ad Hoc cognitive radio networks
Authors: Liu, D
Liu, E
Zhang, Z
Wang, R
Ren, Y
Liu, Y
Ho, IWH
Yin, X
Liu, F
Keywords: Cognitive radio
Connectivity
Continuum percolation
Node density
Issue Date: 2014
Publisher: Institute of Electrical and Electronics Engineers Inc.
Source: IEEE Communications letters, 2014, v. 18, no. 12, 6920000, p. 2177-2180 How to cite?
Journal: IEEE Communications Letters 
Abstract: This letter investigates the connectivity of large-scale ad hoc cognitive radio networks (CRNs). Considering correct detection and false alarm probabilities ( P-{d} and P-{f}), we derive in closed-form the thinned density of active secondary users (SUs) in a secondary network. We show the active-probability and detectable radius of primary users (PUs) have a significant impact on the density of active SUs. Moreover, we find that increasing P-{f} of SUs considerably decreases the node density of active SUs. The connectivity of the secondary network is further analysed with the continuum percolation theory. Given the critical density of the secondary network without the impact of PUs, the critical density of the secondary network coexisting with PUs is estimated analytically. Simulations confirm our analysis.
URI: http://hdl.handle.net/10397/25964
ISSN: 1089-7798
DOI: 10.1109/LCOMM.2014.2362766
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