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

Spectrally efficient digitized radio-over-fiber system with k-means clustering-based multidimensional quantization

Not Accessible

Your library or personal account may give you access

Abstract

We propose a spectrally efficient digitized radio-over-fiber (D-RoF) system by grouping highly correlated neighboring samples of the analog signals into multidimensional vectors, where the k-means clustering algorithm is adopted for adaptive quantization. A 30Gbit/s D-RoF system is experimentally demonstrated to validate the proposed scheme, reporting a carrier aggregation of up to 40 100 MHz orthogonal frequency division multiplexing (OFDM) channels with quadrate amplitude modulation (QAM) order of 4 and an aggregation of 10 100 MHz OFDM channels with a QAM order of 16384. The equivalent common public radio interface rates from 37 to 150Gbit/s are supported. Besides, the error vector magnitude (EVM) of 8% is achieved with the number of quantization bits of 4, and the EVM can be further reduced to 1% by increasing the number of quantization bits to 7. Compared with conventional pulse coding modulation-based D-RoF systems, the proposed D-RoF system improves the signal-to-noise-ratio up to 9dB and greatly reduces the EVM, given the same number of quantization bits.

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
2-D quantization scheme utilizing SOFM neural network clustering for a DRoF system

Jia Ye, Yi Guo, Peng Li, Lianshan Yan, Wei Pan, and Xihua Zou
Opt. Lett. 43(19) 4663-4666 (2018)

Multidimensional vector quantization-based fast statistical estimation in compressed digitalized radio-over-fiber systems

Hongliang Ren, Pu Yu, Jin Lu, Mingyi Gao, Zichun Le, Yali Qin, Shuqin Guo, and Weisheng Hu
Appl. Opt. 58(13) 3418-3425 (2019)

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

Haibo Li, Ming Luo, Xiang Li, and Shaohua Yu
Opt. Lett. 43(20) 5130-5133 (2018)

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 (5)

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