OTFS channel estimation and data detection designs with superimposed pilots

HB Mishra, P Singh, AK Prasad… - IEEE transactions on …, 2021 - ieeexplore.ieee.org
We propose a superimposed pilot (SP)-based channel estimation and data detection
framework for orthogonal time-frequency space (OTFS) systems, which superimposes low …

RF impairments in wireless transceivers: Phase noise, CFO, and IQ imbalance–A survey

A Mohammadian, C Tellambura - IEEE access, 2021 - ieeexplore.ieee.org
Wireless transceivers for mass-market applications must be cost effective. We may achieve
this goal by deploying non-ideal low-cost radio frequency (RF) analog components …

Low-complexity ZF/MMSE MIMO-OTFS receivers for high-speed vehicular communication

P Singh, A Gupta, HB Mishra… - IEEE Open Journal of …, 2022 - ieeexplore.ieee.org
Orthogonal time-frequency space (OTFS) scheme, which transforms a time and frequency
selective channel into an almost non-selective channel in the delay-Doppler domain …

Distributed receiver processing for extra-large MIMO arrays: A message passing approach

A Amiri, S Rezaie, CN Manchón… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
We study the design of receivers in extra-large scale MIMO (XL-MIMO) systems, ie systems
in which the base station is equipped with an antenna array of extremely large dimensions …

BER analysis for OTFS zero forcing receiver

P Singh, K Yadav, HB Mishra… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
We derive closed form bit error rate (BER) expression for orthogonal time frequency space
(OTFS) zero-forcing (ZF) receiver with perfect and imperfect receive channel information …

Evaluation and analysis of FBMC/OQAM systems based on pulse shaping filters

HM Abdel-Atty, WA Raslan, AT Khalil - IEEE Access, 2020 - ieeexplore.ieee.org
Cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) is the most widespread
multicarrier modulation scheme. However, the use of a rectangular filter in CP-OFDM causes …

Bayesian learning-based doubly-selective sparse channel estimation for millimeter wave hybrid MIMO-FBMC-OQAM systems

S Srivastava, P Singh, AK Jagannatham… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
We design and analyse filter bank multicarrier (FBMC) offset quadrature amplitude
modulation (OQAM)-based millimeter wave (mmWave) hybrid multiple-input multiple-output …

Reducing pilot overhead: channel estimation with symbol repetition in MIMO-FBMC systems

D Kong, J Li, K Luo, T Jiang - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
In this article, we aim to reduce the pilot overhead of channel estimation in multiple input
multiple output (MIMO) systems employing filter bank multicarrier (FBMC). The key idea is …

Low-complexity linear MIMO-OTFS receivers

P Singh, HB Mishra, R Budhiraja - 2021 IEEE International …, 2021 - ieeexplore.ieee.org
Orthogonal time-frequency space (OTFS) scheme, which transforms a time and frequency
selective channel into an almost non-selective delay-Doppler domain channel, establishes …

Iterative channel estimation and data detection algorithm for MIMO-OTFS systems

R Ouchikh, T Chonavel, A Aïssa-El-Bey… - Digital Signal …, 2023 - Elsevier
Channel estimation in high-mobility environments is a challenging problem for advanced
mobile communication systems (5G and beyond). In this manuscript, we first propose an …