<正> Previous work mostly employs an ideal system model that assumes fully connected processors andconcurrent communication,which leads to inaccurate and ineffi
<正> A channel estimator used in sparse multipath fading channel for orthogonal frequency division multi-plexing(OFDM)system is proposed.The dimension of signal
<正> Based on the double repetition structure in the frequency domain and the proper pulse shaping falterin the time domain,a novel transmit scheme for orthogon