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GLOBECOM
2010
IEEE
9 years 4 months ago
Learning Interference Strategies in Cognitive ARQ Networks
Cognitive radios, which enable the coexistence on the same bandwidth of licensed primary and unlicensed secondary users, have the potential for dramatically increasing the efficien...
Sina Firouzabadi, Marco Levorato, Daniel O'Neill, ...
GLOBECOM
2010
IEEE
9 years 4 months ago
Modeling and Analysis for Reactive-Decision Spectrum Handoff in Cognitive Radio Networks
This paper investigates how to characterize the effect of multiple spectrum handoff delay on the extended data delivery time of the secondary users' connections in cognitive r...
Chung-Wei Wang, Li-Chun Wang, Fumiyuki Adachi
GLOBECOM
2010
IEEE
9 years 4 months ago
Performance Analysis of Dynamic Spectrum Access Networks under Primary User Emulation Attacks
Primary user emulation attack (PUEA) is a denial of service (DoS) attack unique to dynamic spectrum access (DSA) networks. While there have been studies in the literature to detect...
Z. Jin, S. Anand, K. P. Subbalakshmi
VTC
2010
IEEE
174views Communications» more  VTC 2010»
9 years 5 months ago
An Opportunistic Spectrum Scheduling Scheme for Multi-Channel Cognitive Radio Networks
—In this paper, we develop an opportunistic spectrum scheduling scheme for cognitive radio networks. In the proposed scheme, the channel status (i.e., whether being occupied by p...
Vamsi Krishna Tumuluru, Ping Wang, Dusit Niyato
TCOM
2010
159views more  TCOM 2010»
9 years 5 months ago
Evolutionary cooperative spectrum sensing game: how to collaborate?
—Cooperative spectrum sensing has been shown to be able to greatly improve the sensing performance in cognitive radio networks. However, if cognitive users belong to different se...
Beibei Wang, K. J. Ray Liu, T. Charles Clancy
INFOCOM
2010
IEEE
9 years 5 months ago
Opportunistic Spectrum Access with Multiple Users: Learning under Competition
Abstract—The problem of cooperative allocation among multiple secondary users to maximize cognitive system throughput is considered. The channel availability statistics are initi...
Animashree Anandkumar, Nithin Michael, Ao Tang
INFOCOM
2010
IEEE
9 years 5 months ago
Multicast Scheduling with Cooperation and Network Coding in Cognitive Radio Networks
—Cognitive Radio Networks (CRNs) have recently emerged as a promising technology to improve spectrum utilization by allowing secondary users to dynamically access idle primary ch...
Jin Jin, Hong Xu, Baochun Li
TWC
2008
159views more  TWC 2008»
9 years 6 months ago
Resource allocation for spectrum underlay in cognitive radio networks
A resource allocation framework is presented for spectrum underlay in cognitive radio networks. We consider both interference constraints for primary users and quality of service (...
Long Bao Le, Ekram Hossain
TWC
2008
225views more  TWC 2008»
9 years 6 months ago
Joint rate and power allocation for cognitive radios in dynamic spectrum access environment
Abstract--We investigate the dynamic spectrum sharing problem among primary and secondary users in a cognitive radio network. We consider the scenario where primary users exhibit o...
Dong In Kim, Long Le, Ekram Hossain
TWC
2008
188views more  TWC 2008»
9 years 6 months ago
Joint power control and beamforming for cognitive radio networks
We consider a secondary usage of spectrum scenario where a secondary network coexists and/or shares the radio spectrum with a primary network to which the spectrum is licensed. The...
Habibul Islam, Ying-Chang Liang, Anh Tuan Hoang
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