Digital Compensation of SSBI in Direct Detection Multicarrier System With SOA Nonlinearities

Vedala, Govind; Hameed, Mahmood A.; Hui, Rongqing

doi:10.1109/lpt.2016.2647561

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…-multiplexes occupy sufficiently low aggregate bandwidths but are placed at an RF such that their highest frequency component exceeds the ADC's analog bandwidth. Note that flexibility in the RF placement of the multiplex can be beneficial in certain optical network scenarios [23], [24]. Moreover, both of these conditions may be present at the same time.…”

Section: A Use Of Tha In the Receiver Chain And Extension To A Mapping Hierarchymentioning

confidence: 99%

A Flexible Subcarrier Multiplexing System With Analog Transport and Digital Processing for 5G (and Beyond) Fronthaul

Noor

Assimakopoulos

Gomes

2019

J. Lightwave Technol.

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A flexible subcarrier multiplexing system combining analog transport with digital domain processing is presented. By making use of bandpass sampling and applying a systematic mapping of signals into available Nyquist zones, the multiplexing system is able to present multiple signals at the same intermediate frequency at the remote site. This simplifies the processing required for multiple antenna systems. We further propose the use of trackand-hold amplifiers at the remote site. These elements are used to extend the mapping to a mapping hierarchy, offering flexibility in frequency placement of signals and relaxation of analog-to-digital converter bandwidth and sampling rate constraints. The system allows the transport of different numerologies in a number of next generation radio access network scenarios. Experimental results for large signal multiplexes with both generic and 5th-generation mobile numerologies show error-vector magnitude performance well within specifications, validating the proposed system. Simulation results from a system model matched to these experimental results provide performance predictions for larger signal multiplexes and larger bandwidths. Index Terms-Digital signal processing, massive-MIMO (mMIMO), millimeter wave (mmW), mobile fronthaul, radioover-fiber, subcarrier multiplexing (SCM). I. INTRODUCTIONT HE establishment of heterogeneous networking and multiantenna techniques as norms for next generation radio access networks (RANs) means that new network architectures will need to be employed that can seamlessly accommodate such features. These architectures will have to meet differing requirements in terms of data rate, latency constraints, system complexity and cost.Analog transport within the fronthaul, as an alternative to digital transport based either on centralized processing with the Common Public Radio Interface (CPRI) [1], or on alternative functional decompositions [2], [3], can provide high spectral

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Section: A Use Of Tha In the Receiver Chain And Extension To A Mapping Hierarchymentioning

confidence: 99%

A Flexible Subcarrier Multiplexing System With Analog Transport and Digital Processing for 5G (and Beyond) Fronthaul

Noor

Assimakopoulos

Gomes

2019

J. Lightwave Technol.

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“…Nowadays, kinds of optical amplifier technologies that have developed with distinguished properties. SOA has been used to compensate dispersion [18,19]. In this paper, two amplifiers are chosen to investigate the performance of amplification ranges i.e., SOA and FRA.…”

Section: Introductionmentioning

confidence: 99%

Development of WDM System in Optical Amplifiers by Manipulating Fiber Length and Bandwidth for Telecommunication System

Ikhsan

Syahputra

Suhardi

et al. 2019

Advances in Intelligent Systems and Computing

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The use of fiber optic for telecommunication system has widely developed because of limitations on communication ranges and methods for information demands. In the application of optical fiber communications, signal strength is reduced due to attenuation, absorption and dispersion effects of source, structure, and geometry of fiber, even for single mode fiber, these problems still exist. In order to investigate these phenomena, this paper designs and operates a simple optical design consisting of wavelength division multiplexing (WDM) which is able to multiplex various wavelength sources to one fiber optic by using various source wavelengths. This mechanism allows a bidirectional communication with several or more fibers without any interference. The output will describe the bit error rate (BER) and Q-factor and using two samples of Semiconductor Optical Amplifier (SOA) and Fiber Raman Amplifier (FRA). The simulation evaluates these amplifiers by manipulating the frequency of bandwidth until 50 GHz, a low BER corresponding to large Q-factor is reached. The BER value for SOA device is 7.59 Â 10 −16 and 1.54 Â 10 −27 for SOA device respectively for a bandwidth of 50 GHz. These data depict that SOA is able to launch the wavelength to high performance than that of FRA device. Both optical amplifiers describe better performances in term of the value of BER and Q-factor having much smaller than 10 −12 and larger than that of 6 respectively for a distance of 120 km for SOA and 100 km for FRA.

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Digital Compensation of SOA-Induced Nonlinearities in Field-Modulated Direct-Detection Systems

2021

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Digital Compensation of SSBI in Direct Detection Multicarrier System With SOA Nonlinearities

Cited by 3 publications

References 12 publications

A Flexible Subcarrier Multiplexing System With Analog Transport and Digital Processing for 5G (and Beyond) Fronthaul

A Flexible Subcarrier Multiplexing System With Analog Transport and Digital Processing for 5G (and Beyond) Fronthaul

Development of WDM System in Optical Amplifiers by Manipulating Fiber Length and Bandwidth for Telecommunication System

Digital Compensation of SOA-Induced Nonlinearities in Field-Modulated Direct-Detection Systems

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