Synchronization techniques for underwater acoustic communications

TP Sameer Babu, PM Ameer… - International Journal of …, 2023 - Wiley Online Library
Underwater acoustic channel is a challenging medium for communication due to the
presence of significant multipath, high noise, frequency‐dependent propagation loss, and …

Carrier frequency offset estimation in 5G NR: Introducing gradient boosting machines

M Hussien, A Abdelmoaty, M Elsaadany… - IEEE …, 2023 - ieeexplore.ieee.org
The Beyond fifth Generation (B5G) communication systems imposed several challenges on
radio designers. For example, a machine is required to set up a call at a low Signal-to-Noise …

Equalization and carrier frequency offset compensation for UWA-OFDM communication systems based on the discrete sine transform

K Ramadan, AS Fiky, MI Dessouky… - Digital Signal …, 2019 - Elsevier
Abstract The Zero Forcing (ZF) equalizer suffers from noise enhancement and high
complexity due to direct matrix inversion. On the other hand, the Minimum Mean Square …

Equalization and blind CFO estimation for performance enhancement of OFDM communication systems using discrete cosine transform

K Ramadan, MI Dessouky… - International Journal …, 2020 - Wiley Online Library
In wireless communication systems, equalization is one of the most important schemes to
improve the system performance. This paper consists of two main parts. The first part …

Modified OFDM configurations with equalization and CFO compensation for performance enhancement of OFDM communication systems using symmetry of the …

K Ramadan, MI Dessouky, FE Abd El-Samie - AEU-International Journal of …, 2020 - Elsevier
Abstract The Orthogonal Frequency Division Multiplexing (OFDM) systems allow efficient
spectrum usage and simple Frequency Domain Equalization (FDE). However, a large …

Performance enhancement of underwater acoustic OFDM communication systems

M El-Mahallawy, AS TagEldien, SS Elagooz - Wireless Personal …, 2019 - Springer
The supported bandwidth of the underwater communication systems is limited to several kilo
hertz, which considers as the main challenge for Underwater Acoustic (UWA) …

Joint equalization and CFO compensation for performance enhancement of MIMO-OFDM communication systems using different transforms with banded-matrix …

K Ramadan, MI Dessouky, FE Abd El-Samie - AEU-International Journal of …, 2020 - Elsevier
Abstract The conventional Zero Forcing (ZF), and Minimum Mean Square Error (MMSE)
equalizers suffer from noise enhancement, and high complexity, respectively. Moreover, the …

Equalization and co-carrier frequency offsets compensations for UWA-OFDM communication systems

K Ramadan, MI Dessouky, FEA El-Samie - Wireless Personal …, 2022 - Springer
Abstract The Underwater Acoustic (UWA) wireless communication system is considered one
of the most challenging systems for data transmission. The Orthogonal Frequency Division …

Efficient equalization and carrier frequency offset compensation for underwater wireless communication systems

K Ramadan, MS Elbakry - Annals of Data Science, 2022 - Springer
Underwater Acoustic (UWA) wireless communication systems are plagued by a slew of flaws
that restrict their performance. This includes factors such as high attenuation in seawater …

Performance enhancement of UWA‐OFDM communication systems based on FWHT

M El‐Mahallawy, AT Eldien - International Journal of …, 2019 - Wiley Online Library
The available bandwidth of underwater environment tends to several kilohertz, which
considers the main challenges of communications under sea water. On the other hand, the …