70 search results - page 12 / 14 » Energy-aware adaptive OFDM systems |
SENSYS
2003
ACM
14 years 22 days ago
2003
ACM
Simple in-network data aggregation (or fusion) techniques for sensor networks have been the focus of several recent research efforts, but they are insufficient to support advance...
ICSAP
2010
13 years 11 months ago
2010
—In this paper, we study the performance of the channel estimation in a Turbo coded, orthogonal frequency division multiplexing (OFDM) with multiple antennas at the receiver. We ...
CCECE
2009
IEEE
14 years 2 months ago
2009
IEEE
—Spectrum awareness is a crucial first step of a cognitive radio (CR). This provides information necessary for the CR to adapt to the radio frequency environment, and involves re...
ETT
2007
13 years 7 months ago
2007
Abstract— The performance of the widely applied timedomain channel estimation for SISO- and MIMO-OFDM systems strongly depends on the preciseness of information regarding maximum...
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
Abstract--Cognitive radio (CR) technology is an innovative radio design philosophy which aims to increase spectrum utilization by exploiting unused spectrum in dynamically changing...