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Preamble Design Problematic with 802.11a IEEE Standard (Minn’s Training Sequence Approach)
(Společnost pro radioelektronické inženýrství, 2008-09)
Generally OFDM systems use a predefined signal pattern, called preamble  , which helps the receiver to achieve a better signal detection (coarse, fine time synchronization) with the frequency offset and channel ...
Multi-Antenna OFDM System Using Coded Wavelet with Weighted Beamforming
(Společnost pro radioelektronické inženýrství, 2014-04)
A major drawback in deploying beamforming scheme in orthogonal frequency division multiplexing (OFDM) is to obtain the optimal weights that are associated with information beams. Two beam weighting methods, namely co-phasing ...