Modern communication systems are based on orthogonal frequency division multiplexing
(OFDM). They are designed for dealing with frequency selective channels considering …

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

In this paper, we present the channel estimation (CE) problem in the orthogonal frequency
division multiplexing system with offset quadrature amplitude modulation (OFDM/OQAM) …

This paper deals with the problem of the channel estimation of orthogonal frequency division
multiplexing (OFDM) signals transmitted through a time-varying fading channel. We show …

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) …

The orthogonal frequency division multiplexing (OFDM) scheme is gaining interest in
broadband data communications for wireless communications because of its great immunity …

A reduced complexity channel estimation for OFDM systems with transmit diversity is
proposed by exploiting the correlation of the adjacent subchannel responses. The sizes of …

It is well-known that time-varying channels can provide time diversity and improve error rate
performance compared to time-invariant fading channels. However, exploiting time diversity …

We compare diverse frequency-domain multiplexed pilot arrangement schemes for time-
varying channel estimation in an orthogonal frequency-division multiplexing (OFDM) system …

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