317 search results - page 7 / 64 » Channel Estimation for Non-Line-of-Sight WiMax Communication... |
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— Current OFDM systems assume the channel is not time varying within one OFDM frame, and use channel estimates obtained from preamble or pilots for data symbols within the same f...
TSP
2010
13 years 3 months ago
2010
Abstract--In this paper, we investigate various channel estimators that exploit channel sparsity in the time and/or Doppler domain for a multicarrier underwater acoustic system. We...
VTC
2007
IEEE
14 years 3 months ago
2007
IEEE
— The use of multiple transmit and receive antennas in combination with multicarrier modulation, e.g. MIMO-OFDM, is a very promising technique for future wireless communication s...
GLOBECOM
2006
IEEE
14 years 2 months ago
2006
IEEE
Abstract— Channel estimation and synchronization are crucial problems in coherent Ultra wideband (UWB) systems. We develop a new channel estimation scheme that can further improv...
CORR
2010
Springer
13 years 9 months ago
2010
Springer
In this paper, a two-hop relay assisted cooperative Orthogonal Space-Time Block Codes (OSTBC) transmission scheme is considered for the downlink communication of a cellular system,...