4 search results - page 1 / 1 » Backward Compatible Modulation Schemes for Improving Spectru... |
VTC
2006
IEEE
14 years 5 months ago
2006
IEEE
In this study, a new physical layer transmission technique is proposed with the spectrum efficiency up to two times of that of the Eureka-147 DAB system. The proposed technique com...
DSD
2011
IEEE
12 years 10 months ago
2011
IEEE
—With the opening up of white spaces, efficient use of the fragmented spectrum - TV white space in particular - has become an extremely important focus of research. Apart from ef...
TWC
2008
13 years 11 months ago
2008
Abstract-- Existing space-time codes have focused on multipleantenna systems with linear modulation schemes such as phaseshift keying and quadrature amplitude modulation. Continuou...
MONET
2008
13 years 10 months ago
2008
This paper presents the performance comparison of efficiency. OFDM is well known as a spectrally efficient Cognitive Radio TDCS and OFDM based for MIMO system modulation mode which...