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Updated: Jan 17, 2026
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Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
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Efficient parallel relaying FSO communications using rateless codes in horizontal terrestrial and satellite-to-ground
Optics Express
|September 23, 2025
Summary
This study introduces rateless codes (RCs) for parallel relaying in free-space optical (FSO) communications. RCs enhance reliability and resource efficiency in dynamic atmospheric conditions.
Area of Science:
- Optical Communications
- Wireless Networking
- Information Theory
Background:
- Free-space optical (FSO) communication reliability is significantly impacted by atmospheric conditions.
- Parallel relaying enhances FSO reliability by reducing hop length but increases resource consumption.
- Existing methods like packet duplication are less efficient in dynamic environments.
Purpose of the Study:
- To propose and analyze a parallel relaying configuration using rateless codes (RCs) for optimizing resource utilization in FSO systems.
- To evaluate the performance of RCs in mitigating atmospheric turbulence effects.
- To compare the efficiency of RCs against standardized packet duplication.
Main Methods:
- Development of a precise analytical framework to calculate average resource requirements for parallel relaying systems with RCs.
- Implementation of rateless codes for transmitting different coded packets over parallel links.
- Evaluation under atmospheric turbulence channels in horizontal terrestrial and satellite-to-ground scenarios.
Main Results:
- The proposed RC scheme demonstrates superior resource utilization efficiency compared to packet duplication.
- RCs achieve higher efficiency and lower latency due to unique coded packet transmission.
- The system shows robust performance under dynamic atmospheric channel conditions.
Conclusions:
- Rateless codes offer an effective solution for optimizing resource utilization in parallel relaying FSO systems.
- The proposed scheme significantly improves FSO communication reliability and efficiency.
- This approach is suitable for both terrestrial and satellite-to-ground FSO links facing atmospheric challenges.
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