Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Spectrally efficient digital mobile fronthaul with discrete cosine transform and multi-band quantization

Not Accessible

Your library or personal account may give you access

Abstract

A spectrally efficient digital mobile fronthaul (MFH) with discrete cosine transform and multi-band quantization (DCT-MBQ) is first proposed and experimentally demonstrated. In this approach, the baseband orthogonal frequency division multiplexing (OFDM) symbols are segmented into individual blocks and independently transformed by DCT to obtain a set of transform coefficients. Different from digitizing each OFDM sample with the same number of quantization bits (QBs) in previous digital MFH, MBQ is introduced to separately digitize different parts of the coefficients with different numbers of QBs according to the significance of these coefficients. Furthermore, the part of transform coefficients with little significance is discarded. Thus, the total number of required QBs for digitizing an OFDM symbol can be greatly reduced and, thereby, high bandwidth efficiency can be achieved. In the experiment, the proposed DCT-MBQ-based digital MFH transmission is demonstrated over a 25 Gb/s four-level pulse amplitude modulation intensity modulation-direct detection optical link supporting up to 16×100MHz 5G new radio carriers with 1024 QAM, achieving an error vector magnitude of 0.65%. The equivalent common public radio interface rates from 55 to 158 Gb/s are supported.

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
Spectrally efficient digitized radio-over-fiber system with k-means clustering-based multidimensional quantization

Lu Zhang, Xiaodan Pang, Oskars Ozolins, Aleksejs Udalcovs, Sergei Popov, Shilin Xiao, Weisheng Hu, and Jiajia Chen
Opt. Lett. 43(7) 1546-1549 (2018)

Improving spectral efficiency of digital radio-over-fiber transmission using two-dimensional discrete cosine transform with vector quantization

Xia Feng, Jia Ye, Lianshan Yan, Jianwei Luo, Peng Li, Wei Pan, Xihua Zou, and Bin Luo
Opt. Express 29(16) 25868-25875 (2021)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (1)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved