In high‐mobility scenarios, the time variation of mobile radio channels leads to a loss of
orthogonality among subcarriers in orthogonal frequency division multiplexing (OFDM) …

Orthogonal frequency division multiplexing (OFDM) channel estimation is the key technique
used in broadband wireless networks. The Doppler frequency caused by fast mobility …

In orthogonal frequency division multiplexing (OFDM) systems over fast-varying fading
channels, channel estimation and tracking is generally carried out by transmitting known …

Nowadays, multicarrier transmission is very popular because of the high data rate
requirement of wireless systems. Orthogonal frequency-division multiplexing (OFDM) is a …

In this paper, we deal with channel estimation for orthogonal frequency-division multiplexing
(OFDM) systems. The channels are assumed to be time-varying (TV) and approximated by a …

Orthogonal frequency division multiplexing (OFDM) systems encounter performance
degradations due to the time varying (TV) channels in wireless environments. As delay …

Orthogonal frequency-division multiplexing (OFDM) combines the advantages of high
performance and relatively low implementation complexity. However, for reliable coherent …

The new wireless standard, Long-Term-Evolution (LTE), needs to support high data rate
orthogonal frequency division multiplexing (OFDM) transmission for highly mobile users …

This paper considers the channel estimation method in the case of a high mobility
communication in orthogonal frequency-division multiplexing (OFDM) systems. In this paper …

A low complexity time-domain channel estimation scheme for OFDM systems is presented. It
uses a training symbol (preamble) to estimate the channel impulse response (CIR) in the …