Conference proceeding
Memory Decoding Algorithm for FSO Transmission
2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring), Vol.2020-, pp.1-5
05/2020
DOI: 10.1109/VTC2020-Spring48590.2020.9128944
Abstract
Due to the limitation of the radio frequency (RF) spectrum, it is increasingly more difficult to support billions of wireless devices in the age of Internet-of-Things. Consequently, many recent wireless indoor communication systems have been developed using free space optical (FSO) communication technologies that exploit the extremely large light spectrum to transmit data. However, FSO technologies, especially when using On-Off Keying(OOK) modulation, the Light-Emitting-Diode (LED) transmitters produce an inherent non-linear distortion in the output. Effectively, the LED acts as a band-limited channel between the inputs and outputs. In this paper, we utilize a mathematical model to capture the distortion of the output for a given input. Based on the mathematical model, we developed a technique called Memory Decoding Algorithm (MDA) used at a receiver and effectively reduces the bit error rates via maximum likelihood decoding principle when On-Off Keying(OOK) modulation is used. Both theoretical analyses and simulation results show that the proposed technique outperforms the conventional methods such as linear equalization.
Details
- Title: Subtitle
- Memory Decoding Algorithm for FSO Transmission
- Creators
- Yu-Jung Chu - Oregon State UniversityThinh Nguyen - Oregon State University
- Resource Type
- Conference proceeding
- Publication Details
- 2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring), Vol.2020-, pp.1-5
- Publisher
- IEEE
- DOI
- 10.1109/VTC2020-Spring48590.2020.9128944
- ISSN
- 1550-2252
- eISSN
- 2577-2465
- Language
- English
- Date published
- 05/2020
- Academic Unit
- Electrical and Computer Engineering
- Record Identifier
- 9984197526602771
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