We propose a superimposed pilot (SP)-based channel estimation and data detection
framework for orthogonal time-frequency space (OTFS) systems, which superimposes low …

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

Receivers with joint channel estimation (CE) and signal detection using superimposed pilots
(SP) can achieve high transmission efficiency in orthogonal time frequency space (OTFS) …

This paper proposes a new superimposed training (ST) scheme for uplink multi-user multi-
cell system, where each base station, equipped with a large number of antennas (M) …

This paper proposes a novel and efficient method of impulse response modeling in
presence of input and noisy output of a linear time-invariant (LTI) system. The approach …

Current communication standards are designed to operate under either frequency or time
selectivity. However, the rising demand of higher data rates combined with the mobility of the …

Maximum likelihood sequence estimation (MLSE) and maximum a posteriori probability
(MAP) equalizers are optimum receivers for dealing with intersymbol interference (ISI) in …

The practical time-varying channel between a high-speed train (HST) and infrastructure has
a single Doppler shift on each resolvable multipath in most cases. As a result, the HST …

This paper proposes a simple and high performance least square solver using recursive
update of modified Cholesky factors. While most of the methods require inversion of …

This paper proposes an impulse response modeling in presence of input and noisy output of
a LTI system. The approach utilizes Relative Entropy (RE) to choose the optimum impulse …