Asynchronous multiple access using flexible bandwidth allocation scheme in SCM-based 32/64QAM-OFDM VLC system

Asynchronous multiple access using flexible bandwidth allocation scheme in SCM-based... This paper reports a novel asynchronous multiple access using flexible bandwidth allocation scheme in sub-channels-multiplexing-based visible light communication system, adopting quadrature amplitude modulation orthogonal frequency division multiplexing modulation. In this demonstration, an ordinary phosphorescent light-emitting diode with relatively low modulation bandwidth is used. Four sub-channels without any channel spacing are adopted to simultaneously support four users. By using this scheme combined with frequency domain equalization, the data rate of each user can be dynamically reconfigured from 10 to 120 Mb/s, and the overall throughput is above 125 Mb/s at a distance of 120 cm. Furthermore, a data rate of 225 Mb/s by adopting two sub-channels at a distance of 66 cm within the FEC limit of $$3.8\times 10^{-3}$$ 3.8 × 10 - 3 has been also achieved. This scheme has good scalability for supporting more terminals, and high spectrum efficiency due to the dynamic traffic reconfiguration, which shows that it has great potential advantages in future access network. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Photonic Network Communications Springer Journals

Asynchronous multiple access using flexible bandwidth allocation scheme in SCM-based 32/64QAM-OFDM VLC system

Loading next page...
 
/lp/springer_journal/asynchronous-multiple-access-using-flexible-bandwidth-allocation-B0MMZr1pfp
Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer Science+Business Media New York
Subject
Computer Science; Computer Communication Networks; Electrical Engineering; Characterization and Evaluation of Materials
ISSN
1387-974X
eISSN
1572-8188
D.O.I.
10.1007/s11107-013-0425-z
Publisher site
See Article on Publisher Site

Abstract

This paper reports a novel asynchronous multiple access using flexible bandwidth allocation scheme in sub-channels-multiplexing-based visible light communication system, adopting quadrature amplitude modulation orthogonal frequency division multiplexing modulation. In this demonstration, an ordinary phosphorescent light-emitting diode with relatively low modulation bandwidth is used. Four sub-channels without any channel spacing are adopted to simultaneously support four users. By using this scheme combined with frequency domain equalization, the data rate of each user can be dynamically reconfigured from 10 to 120 Mb/s, and the overall throughput is above 125 Mb/s at a distance of 120 cm. Furthermore, a data rate of 225 Mb/s by adopting two sub-channels at a distance of 66 cm within the FEC limit of $$3.8\times 10^{-3}$$ 3.8 × 10 - 3 has been also achieved. This scheme has good scalability for supporting more terminals, and high spectrum efficiency due to the dynamic traffic reconfiguration, which shows that it has great potential advantages in future access network.

Journal

Photonic Network CommunicationsSpringer Journals

Published: Dec 7, 2013

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off