Abstract
This paper presents experimental results demonstrating a > 100 Mb/s visible light communications (VLC) system using linear adaptive equalizers for the first time. In order to achieve high transmission speeds, generally the research community has adopted spectrally efficient modulation formats such as discrete multi-tone and equalizers are overlooked. The reason for this is unclear as equalizers offer a substantial capacity for removing inter-symbol interference. As a result, in this paper we implement a line-of-sight VLC link with an ∼8 MHz bandwidth and a linear feedforward equalizer; the number of taps is varied in order to gain insight into the system performance using varying complexity. The 120 Mb/s transmission speed ultimately achieved offers a bit-rate to bandwidth gain of ∼15 times.
Original language | English |
---|---|
Title of host publication | 2014 19th European Conference on Networks and Optical Communications, NOC 2014 |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 136-139 |
Number of pages | 4 |
ISBN (Print) | 9781479938728 |
DOIs | |
Publication status | Published - 1 Jan 2014 |
Event | 2014 19th European Conference on Networks and Optical Communications, NOC 2014 - Milano, United Kingdom Duration: 4 Jun 2014 → 6 Jun 2014 |
Conference
Conference | 2014 19th European Conference on Networks and Optical Communications, NOC 2014 |
---|---|
Country/Territory | United Kingdom |
City | Milano |
Period | 4/06/14 → 6/06/14 |
Keywords
- Equalizers
- light emitting diodes
- visible light communications