Eliminating software adjustments in circuits based on digital logic improves robustness and reduces cost for small-production-run series. This circuit is a cost-improved version of classical QPSK ...

This project implements a fully digital system on an FPGA to convert an 8-bit parallel data input into a QPSK (Quadrature Phase-Shift Keying) modulated baseband signal. The system is designed as a ...

Abstract: This paper presents an optimized control framework for generating quadrature phase-shift keying (QPSK) optical signals using dual-drive Mach-Zehnder modulators (DD-MZMs). QPSK modulation in ...

Abstract: The increasing demand for data throughput in modern data centers has intensified the need for high-speed, energy-efficient optical interconnects. Although traditional intensity-modulation ...

This paper is the study of the QPSK (Quadrature Phase Shift keying) modulation technique using AWGN (Additive White Gaussian Noise) and Multipath Rayleigh fading channel. In QPSK scheme the authors ...

The demand for greater data throughput seems endless, and it is accelerating faster than many people expected, creating bottlenecks in fiber-optics networks. Digital transmissions of 100 Gbps, which ...

The demand for greater data throughput seems endless, and it is accelerating faster than many people expected, creating bottlenecks in fiber-optics networks. Digital transmissions of 100 Gbps, which ...

Free Space Optics is the technology which implies the line-of-sight link for the transfer of data between two distant points. The beam of light is used to provide optical connection that can transmit ...

ABSTRACT: Wireless Underground Sensor Networks (WUSNs) offer promising solutions for applications such as pipeline monitoring, agriculture, and border patrol, but they face significant challenges due ...