Results 131 to 140 of about 71,835 (281)

Performance Analysis of the LDPC‐Coded Hybrid LQAM‐MPPM for UWOC Systems

open access: yesIET Optoelectronics, Volume 20, Issue 1, January/December 2026.
The effectiveness of LDPC codes in improving the performance of hybrid modulations is discussed, with coded 128‐QAM‐(12, 2) MPPM offering ~6.5 and 5.8 dB code gains at a BER of in strong and moderate turbulence, respectively. These results demonstrate the promise of hybrid modulation with LDPC as a robust and efficient modulation scheme for UWOC ...
Hongyan Jiang   +6 more
wiley   +1 more source

Compressive TDOA Estimation Method Based on Amplitude Phase Clustering in Time‐Frequency Domain

open access: yesIET Signal Processing, Volume 2026, Issue 1, 2026.
In the field of signal processing, modulation signals, including phase shift keying (PSK) and quadrature amplitude modulation (QAM), can significantly enhance the signal‐to‐noise ratio (SNR) through aliasing transmission following clustering and sorting.
Yang Jiao   +5 more
wiley   +1 more source

Blocking Interference Mechanism in Networked Radios Under UWB HPM

open access: yesIET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.
This paper conducts a systematic cross‐level analysis of the damage mechanism encompassing ‘electromagnetic interference–hardware impairment–communication performance’ for QPSK‐based networked radios. Using ultra‐wide spectrum pulse signals as the interference source, the study considers the scenario where electromagnetic interference causes damage to ...
Jiale Zhou   +6 more
wiley   +1 more source

Flow Regulation in a T‐Shaped Mixing Channel Using a Proportional‐Integral‐Derivative Controller

open access: yesThe Journal of Engineering, Volume 2026, Issue 1, January/December 2026.
This study investigates mixed convection in a 2D T‐shaped channel with a heated cylinder, employing a PID controller to regulate airflow and maintain consistent outlet temperatures. Using the Galerkin finite element method (GFEM), the effects of varying PID parameters on system stability and response time are analysed.
Siam Abrar Saad, Nahid Hasan, Sumon Saha
wiley   +1 more source

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