70 search results - page 3 / 14 » Energy-aware adaptive OFDM systems |
MCSS
2009
Springer
14 years 2 months ago
2009
Springer
Link Adaptation for Orthogonal Frequency Division Multiplex (OFDM) systems is an important topic to achieve higher spectral efficiencies or better error rate performance. However, ...
VTC
2008
IEEE
14 years 1 months ago
2008
IEEE
—In this paper we present a study on pilot aided time and frequency synchronization for Opportunistic Radio (OR) OFDM systems which apply adaptive subcarrier allocation technique...
CORR
2010
Springer
13 years 5 months ago
2010
Springer
The previous link adaptation algorithms on ofdm based systems use equal modulation order for all sub carrier index within a block. For multimedia transmission using ofdm as the mo...
ICC
2009
IEEE
13 years 5 months ago
2009
IEEE
Robust channel estimation scheme is essential for pulse-shaping OFDM systems in the multipath mobile environment. This paper proposes three types of channel estimation schemes for ...
VTC
2006
IEEE
14 years 1 months ago
2006
IEEE
Abstract—This paper proposes a new scheme based on information theoretical criteria to estimate the Channel-ImpulseResponse (CIR) length, whose accurate estimate represents one o...