Channel Equalization in Optical OFDM Systems Using Independent Component Analysis

Li, Xiang; Zhong, Wen‐De; Alphones, Arokiaswami; Chen, Yu; Xu, Zhaowen

doi:10.1109/jlt.2014.2340431

Cited by 23 publications

(10 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The ICA-based CEs are used to compensate the linear channel impairments in DDO-OFDM and PDM-CO-OFDM system. 3 types of ICA algorithms including MN, ML, MMI are applied for the purpose of channel equalization [11].…”

Section: Literature Reviewmentioning

confidence: 99%

“…In the receiver, an FFT is used to recover the original data. The FFT allows an efficient implementation of modulation of data onto multiple carriers [11]. Due to the similarity between the forward and inverse transform, the same circuitry, with trivial modifications, can be used for both modulation and demodulation in a transceiver.…”

Section: Figure 2: Ofdm Spectrum In Frequency Domain [12]mentioning

confidence: 99%

See 1 more Smart Citation

Design & Development of High Data Rate Orthogonal Frequency Division Multiplexing System Using FFTs

khatri¹,

Mann²

2015

International Journal of Innovative Research in Electrical, Ele

View full text Add to dashboard Cite

Abstract:In recent years, Orthogonal Frequency Division Multiplexing (OFDM) has been successfully used in terrestrial digital video broadcasting and showed it is a strong candidate for the modulation technique of future wireless systems. This paper is concerned with how well OFDM performs in digital broadcasting when transmitted over an Additive White Gaussian Noise (AWGN) channel only. The main objective of this work is to design an OFDM system for digital broadcasting standard. In this, it uses 2k mode and 8k mode system. OFDM is based on FFT based subcarriers. The main problem in OFDM is PAPR value. So, in this work, it also improves the value of PAPR under different modulation formats. The Digital Video Broadcasting Project (DVB) is a multinational initiative to standardize digital broadcasting worldwide. The purpose of this paper is to provide a simulation of the process involved in the generation and reception of an OFDM signal in a physical channel and to provide a description of each of the steps involved.

show abstract

Section: Literature Reviewmentioning

confidence: 99%

Section: Figure 2: Ofdm Spectrum In Frequency Domain [12]mentioning

confidence: 99%

Design & Development of High Data Rate Orthogonal Frequency Division Multiplexing System Using FFTs

khatri¹,

Mann²

2015

International Journal of Innovative Research in Electrical, Ele

View full text Add to dashboard Cite

show abstract

“…For example, the PSR, PBS, and PR can be combined to multiplex and demultiplex two orthogonally polarized beams, acting as a polarization multiplexer/ demultiplexer [2,22,23]. Moreover, a multiple-inputmultiple-output (MIMO) algorithm is further needed to descramble the two channels when the SOPs are changed or even become non-orthogonal, caused by crosstalk and unbalanced loss [24]. Unfortunately, the MIMO algorithms suffer from heavy computation requirements for highbandwidth electronic hardware.…”

Section: Introductionmentioning

confidence: 99%

All-in-one silicon photonic polarization processor

et al. 2019

View full text Add to dashboard Cite

With the great developments in optical communication technology and large-scale optical integration technology, it is imperative to realize the traditional functions of polarization processing on an integration platform. Most of the existing polarization devices, such as polarization multiplexers/demultiplexers, polarization controllers, polarization analyzers, etc., perform only a single function. Definitely, integrating all these polarization functions on a chip will increase function flexibility and integration density and also cut the cost. In this article, we demonstrate an all-in-one chip-scale polarization processor based on a linear optical network. The polarization functions can be configured by tuning the array of phase shifters on the chip. We demonstrate multiple polarization processing functions, including those of a multiple-input-multiple-output polarization descrambler, polarization controller, and polarization analyzer, which are the basic building blocks of polarization processing. More functions can be realized by using an additional two-dimensional output grating. A numerical gradient descent algorithm is employed to self-configure and self-optimize these functions. Our demonstration suggests great potential for chip-scale, reconfigurable, and fully programmable photonic polarization processors with the artificial intelligence algorithm.

show abstract

“…Different dispersion compensation techniques have been proposed in the literature like (i) Decision-Feedback Equalizers (DFE) and (ii) Feed-Forward Equalizers (FFE) [2]. No doubt, the DFE/FFE schemes are performing well in single mode fiber (SMF) system [3], but these have limitations to compensate for different characteristics (e.g., chromatic dispersion and modal dispersion) of the MMF system.…”

Section: Introductionmentioning

confidence: 99%

Extended Reach 10 Gb/s Transmission with an Optical I/Q Modulator Using VCSELs over OFDM-Based Multimode Fiber Link

Kedia

Nehra

2018

International Journal of Optics

View full text Add to dashboard Cite

This paper investigates the possibilities of extending the reach of a 10 Gb/s orthogonal frequency division multiplexing-(OFDM-) based multimode fiber (MMF) link with an optical I/Q modulation technique through vertical cavity surface emitting lasers (VCSELs). The proposed I/Q modulation technique comprises two VCSELs in a 90∘ hybrid combination to produce I/Q modulated OFDM signal. The results show the excellent performance (in terms of BER and factor) of the direct-detection optical-(DDO-) OFDM system with the proposed I/Q modulation in comparison to the direct modulation case. The proposed system is able to achieve worst-case BER of about 1.8616 × 10 −3 and factor of about 10.9949 dB over a 5 km MMF link. The I/Q modulation technique in the DDO-OFDM system has further been investigated for extending the transmission reach of the MMF link using multispan configuration.

show abstract

Channel Equalization in Optical OFDM Systems Using Independent Component Analysis

Cited by 23 publications

References 17 publications

Design & Development of High Data Rate Orthogonal Frequency Division Multiplexing System Using FFTs

Design & Development of High Data Rate Orthogonal Frequency Division Multiplexing System Using FFTs

All-in-one silicon photonic polarization processor

Extended Reach 10 Gb/s Transmission with an Optical I/Q Modulator Using VCSELs over OFDM-Based Multimode Fiber Link

Contact Info

Product

Resources

About