… This paper fully reviews channel estimation strategies in OFDM systems. It describes
block-type pilot-channel estimators, which may be based on least square (LS), minimum mean-…

… Generally, the OFDM system is designed so that the cyclic extension is a small … discusses
channel estimation techniques in wireless OFDM systems, that use this property of the channel …

… ) based fading channels as channel models. In Section II, the description of … OFDM
system based on pilot channel estimation is given. In Section III, the estimation of the channel …

… an OFDM system … channel estimation schemes for OFDM systems have been compared.
The main advantage of MLE over MMSEE is that it does not require knowledge of the channel …

… systems, and channel estimation in MIMO-OFDM systems will … Hence, channel estimation
in MIMOOFDM systems needs to … channel estimation approaches for MIMO-OFDM systems in …

… Baseband OFDM System The OFDM system based on pilot channel estimation is given in
Figure 1. The binary information is first grouped and mapped according to the modulation in “…

… -OFDM system with EM-based channel estimation and a QRD-M data detection algorithm. In
our systems… each transmit antenna for the MIMO channel estimation at the receiver. With the …

… oversampled OFDM systems, sample spaced channel models … proposed estimator can be
useful for such channels too. The … timing and channel estimation for OFDM systems,” in Proc. …

… OFDM systems by using coherent PSK, we investigate robust channel estimation for OFDM
systems… The OFDM system with channel estimation considered in this paper is shown in Fig. 1…

… to obtain an accurate channel estimate by utilizing a small number of OFDM symbols. Next,
… MIMOOFDM system with Mt ≤ Mr to the blind channel estimation for a MIMO-OFDM system …