Sciweavers

375 search results - page 3 / 75
» Accessible Capacity of Secondary Users
Sort
View
GLOBECOM
2010
IEEE
14 years 8 months ago
Enabling Secondary Access through Robust Primary User Channel Assignment
Abstract--A common concept to mitigate the effects of spectrum scarcity is to allow opportunistic dynamic spectrum access (DSA) to licensed frequency bands. In this context, the li...
Jad Nasreddine, Andreas Achtzehn, Janne Riihij&aum...
CORR
2010
Springer
49views Education» more  CORR 2010»
14 years 10 months ago
Distributed Algorithms for Learning and Cognitive Medium Access with Logarithmic Regret
The problem of distributed learning and channel access is considered in a cognitive network with multiple secondary users. The availability statistics of the channels are initially...
Animashree Anandkumar, Nithin Michael, Ao Kevin Ta...
GLOBECOM
2010
IEEE
14 years 8 months ago
Robust Spectrum Decision Protocol against Primary User Emulation Attacks in Dynamic Spectrum Access Networks
We propose a spectrum decision protocol resilient to primary user emulation attacks (PUEA) in dynamic spectrum access networks. PUEA is a type of denial-of-service attack that can ...
Z. Jin, S. Anand, K. P. Subbalakshmi
INFOCOM
2012
IEEE
13 years 15 days ago
Achievable transmission capacity of cognitive mesh networks with different media access control
—Spectrum sharing is an emerging mechanism to resolve the conflict between the spectrum scarcity and the growing demands for the wireless broadband access. In this paper we inve...
Tao Jing, Xiuying Chen, Yan Huo, Xiuzhen Cheng
TWC
2008
225views more  TWC 2008»
14 years 10 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