A survey on high mobility wireless communications: Challenges, opportunities and solutions

J Wu, P Fan - IEEE Access, 2016‏ - ieeexplore.ieee.org
Providing reliable broadband wireless communications in high mobility environments, such
as high-speed railway systems, remains one of the main challenges faced by the …

Low-complexity symbol detection and interference cancellation for OTFS system

H Qu, G Liu, L Zhang, S Wen… - IEEE transactions on …, 2020‏ - ieeexplore.ieee.org
Orthogonal time frequency space (OTFS) is a two-dimensional modulation scheme realized
in the delay-Doppler domain, which targets the robust wireless transmissions in high …

Efficient channel equalization and symbol detection for MIMO OTFS systems

H Qu, G Liu, MA Imran, S Wen… - IEEE Transactions on …, 2022‏ - ieeexplore.ieee.org
The application of multiple-input multiple-output (MIMO) over orthogonal time frequency
space (OTFS) modulation is envisioned to provide high-data-rate wireless transmission in …

A time-domain approach to channel estimation and equalization for the SC-FDM system

H Qu, G Liu, Y Wang, Q Chen, C Yi… - IEEE Transactions on …, 2019‏ - ieeexplore.ieee.org
Similar to orthogonal frequency division multiplexing receiver, the frequency-domain (FD)
channel estimation (CE) and equalization are indispensable parts in the coherent single …

Adaptive interpolation for pilot-aided channel estimator in OFDM system

G Liu, L Zeng, H Li, L Xu, Z Wang - IEEE Transactions on …, 2014‏ - ieeexplore.ieee.org
In OFDM system, channel estimator with fixed-coefficient interpolation gives rise to
significant estimation errors when the estimator mismatches the experienced time-varying …

ICI self-cancellation with cosine windowing in OFDM transmitters over fast time-varying channels

TL Liu, WH Chung, SY Yuan… - IEEE Transactions on …, 2015‏ - ieeexplore.ieee.org
We propose the application of cosine windowing for the orthogonal frequency-division
multiplexing (OFDM) systems to self-cancel intercarrier interference (ICI) in fast time-varying …

Wrap-around based frequency-varying Viterbi detection for windowed OFDM systems in doubly selective fading channels

S He, Q Zhang - IEEE Communications Letters, 2023‏ - ieeexplore.ieee.org
In doubly selective fading channels, the conventional orthogonal frequency division
multiplexing (OFDM) system suffers high inter-carrier interferences (ICIs). To deal with the …

Fine Doppler Resolution Channel Estimation and Offset Gradient Descent Equalization for OTFS Transmission over Doubly Selective Channels

H Zhang, X Huang, JA Zhang - 2023 22nd International …, 2023‏ - ieeexplore.ieee.org
Orthogonal time frequency space (OTFS) modulation offers attractive performance in co**
with doubly selective channels. In this paper, we propose a time-domain trainingsequence …

Fast time-varying multipath channel estimation and signal detection for of OFDM systems with interference compensation

YH Jan - Wireless Personal Communications, 2018‏ - Springer
Orthogonal frequency division multiplexing (OFDM) is a widely adopted system for
broadband wireless transmission, However, time-varying channels degrade the …

Adaptive complex interpolator for channel estimation in pilot-aided OFDM system

G Liu, L Zeng, H Li, L Xu, Z Wang - Journal of Communications …, 2013‏ - ieeexplore.ieee.org
In an orthogonal frequency division multiplexing system, conventional interpolation
techniques cannot correctly balance performance and overhead when estimating dynamic …