67 search results - page 3 / 14 » Interference Model for Cognitive Coexistence in Cellular Sys... |
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
— Cognitive radio has been recently proposed as a promising technology to improve the spectrum utilization efficiency by intelligently sensing and accessing some vacant bands of...
JSAC
2011
13 years 2 months ago
2011
—Opportunistic spectrum access creates the opening of under-utilized portions of the licensed spectrum for reuse, provided that the transmissions of secondary radios do not cause...
CISS
2008
IEEE
14 years 1 months ago
2008
IEEE
Abstract— According to the cognitive radio paradigm, a terminal or subsystem will opportunistically select a frequency band for data transmission. Because the spectrum is shared,...
GLOBECOM
2007
IEEE
2007
IEEE
Enhanced Adaptive Frequency Hopping for Wireless Personal Area Networks in a Coexistence Environment
14 years 1 months ago
— In this paper, we present an enhanced adaptive frequency hopping (EAFH) mechanism for improving the performance of frequency hopping-based wireless personal area networks (WPAN...
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
— In this work we develop Markovian models to study the dynamics of elastic calls in a cell served by HSDPA and WiMAX systems. We first present analytical models for interferenc...