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PIMRC
2010
IEEE
13 years 6 months ago
Opportunistic channel access scheme for cognitive radio system based on residual white space distribution
We propose an opportunistic channel access scheme for cognitive radio-enabled secondary networks. In our work, we model the channel occupancy due to Primary User (PU) activity as a...
Manuj Sharma, Anirudha Sahoo
ICC
2007
IEEE
170views Communications» more  ICC 2007»
14 years 16 days ago
Adaptive Power Loading for OFDM-Based Cognitive Radio Systems
Abstract--Cognitive radio (CR) technology is an innovative radio design philosophy which aims to increase spectrum utilization by exploiting unused spectrum in dynamically changing...
Gaurav Bansal, Md. Jahangir Hossain, Vijay K. Bhar...
CONEXT
2006
ACM
14 years 2 months ago
Neighbor discovery analysis in wireless sensor networks
In wireless sensor networks, hello protocols for neighbor discovery are a basic service offered by the networking stack. However, their study usually rely on rather simplistic mo...
Elyes Ben Hamida, Guillaume Chelius, Eric Fleury
ICC
2008
IEEE
106views Communications» more  ICC 2008»
14 years 3 months ago
Performance Evaluation of BICM-OFDM Systems Impaired by UWB Interference
— In this paper, we propose a theoretical framework for the analysis of the impact of ultra–wideband (UWB) interference on systems that use the popular combination of bit– in...
Amir Nasri, Robert Schober, Lutz H.-J. Lampe
ICC
2007
IEEE
175views Communications» more  ICC 2007»
14 years 3 months ago
A Framework for Dynamic Spectrum Sharing Between Cognitive Radios
— We consider a cognitive radio system like the future 802.22 networks where license-exempt service providers (SPs) will share a fixed spectrum in a non-interference basis to ea...
Joydeep Acharya, Roy D. Yates