Adaptive & blind equalization in digital optical receivers

Digital coherent receivers have caused a revolution in the design of optical transmission systems, due to the subsystems and algorithms embedded

Equalizer Design and Complexity for Digital Coherent Receivers

In this paper, we give an overview of digital equalization algorithms for coherent receivers and derive expressions for their complexity. We compare single-carrier and multicarrier approaches,

Adaptive frequency-domain equalization in digital

We propose a novel frequency-domain adaptive equalizer in digital coherent optical receivers, which can reduce computational complexity of the

8 Adaptive receivers and channel equalization

Adaptive receivers and channel equalization The theory developed in Chapter 7, devoted to the design of an optimum receiver in the presence of channel distortion, was based on the assumption of a

5 Introduction to Receiver Design

The basic structure of an optical receiver, figure 5.1, is similar to that of a direct detection r.f. receiver: a low-noise preamplifier, the front-end, feeds further amplification stages, the post-amplifier, before

Blind equalization and carrier-phase recovery based on modified

Block diagram of conventional blind equalization and carrier-recovery scheme in PDM-QPSK coherent optical receivers On the other hand, the proposed scheme is shown in Fig. 2 where

A novel high precision adaptive equalizer in digital coherent optical

Polarization diversity optical coherent receivers, which combine a polarization-division multiplexing (PDM) and an M -ary modulation formats, were a promising solution for high-capacity

Chapter 3 Equalization Techniques

Pre-equalizers and post-equalizers: the equalizer may be placed anywhere in the channel, at the transmitter side (pre-equalizer), receiver side (post-equalizer), or both sides. Pre-equalization adjusts

Adaptive & blind equalization in digital optical receivers

A high precision adaptive equalization method is proposed and analyzed using constant modulus algorithm (CMA).It includes blind and adaptive equalization. This proposed algorithm is

Mastering Equalization in Signal Processing

Discover the fundamentals and advanced techniques of equalization in signal processing to optimize communication systems and improve signal quality.

Adaptive Electronic Equalization for Non-Ideal Optical Coherent Receivers

Adaptability is essential due to the time-variant nature of PMD and possible changes in fiber length caused by optical switching in all-optical networks. Due to the phase preservation property of

(PDF) Electronic equalization in optical fiber

In this paper, an initial discussion is presented on the potential of applying electronic equalization in WDM optical communication systems.

Digital Signal Processing for Optical Communications and Networks I

Abstract: The achievable information rates of optical communication networks have been widely increased over the past four decades with the introduction and development of optical amplifiers,

Optical Communication Systems (OPT428)

APD Receiver Sensitivity Receiver sensitivity improves for APD receivers. If thermal noise dominates, ̄Prec is reduced by a factor of M. When shot and thermal noise are comparable, receiver sensitivity

Optimal Optical Receivers in Nanoscale CMOS: A Tutorial

The integration of optical receivers in nanoscale CMOS technologies is challenging due to less intrinsic gain and more noise compared to SiGe BiCMOS technologies. Recent research

A novel high precision adaptive equalizer in digital coherent optical

A novel high precision adaptive equalization method is introduced and applied to dynamic equalization for quadrature phase shift keying (QPSK) coherent optical communication system in this

Optical receivers (Chapter 10)

Summary In this chapter we summarize the operation of an optical receiver, which is an important part of an optical communication system. An

Advanced Equalization Techniques for Digital Coherent Optical

Highlight results presented in this PhD thesis include evaluation and implementation of a novel approach based on joint encoding and equalization technique, known as Turbo Equal- ization (TE).

Chapter 9 Optical Receiver Design

An optical receiver consists of an optical detector, usually a PIN or APD diode, which converts the optical signal to an electrical signal. However, the signal gen-erated by a detector is generally too

Adaptive & Blind Equalization in Digital Optical Receivers using

ication link utilizes new advanced algorithm for blind equalisation as constant module algorithm. The studied Digital Signal Processing algorithm is considered as important buildin blocks in digital

Electrical and optical equalization strategies in direct detected high

In this paper we give an overview of equalization technologies for adaptive compensation of dynamic distortions in high-bitrate optical transmission systems. In particular we focus on electrical

Optical Equalizer: Basics and Specifications

Discover the basics of optical equalizers, their role in WDM systems, and essential specifications for extended optical transmission.

Chapter 4.4.4

Therefore, gain equalization is a key function in long-haul applications. Optical gain equalizers monitor each wavelength channel and selectively make amplitude

Adaptive frequency-domain equalization in digital coherent optical

Abstract: We propose a novel frequency-domain adaptive equalizer in digital coherent optical receivers, which can reduce computational complexity of the conventional time-domain adaptive equalizer

Understanding Transceiver Equalization — Xena Cable Performance

Transceiver RX Output Equalization and TX Input Equalization are two critical concepts in high-speed interconnects. They refer to the equalization settings applied to the received signal (RX) and

Equalization Enhanced Phase Noise in Coherent Receivers: DSP

Abstract—We revisit the analysis of equalization-enhanced phase noise (EEPN) arising in coherent receivers from the interaction between the chromatic dispersion compensation by an electronic

Equalization

These equalization methods convert a band-limited channel with ISI into one that appears memoryless, hopefully synthesizing a new AWGN-like channel at the receiver output.

Optical Receiver

Optical receiver characterization and calibration are important for both optical communication and instrumentation, which directly affect optical system performance and measurement accuracy. In this

Chapter 10 Coherent Optical Communication Systems

In this section, we describe the implementation of the functionalities of the optical M-PSK transmitter and receiver using various photonic devices, i.e., a QM, a balanced receiver, a phase-diversity receiver