TCP Performance Over Satellite-Based Hybrid FSO/RF Vehicular Networks: Modeling and Analysis

Recent years have witnessed a growing interest in Internet access from space assisted by low earth orbit (LEO) satellite networks. In the domain of the last-mile access for the Internet of Vehicles (IoV), hybrid free-space optical (FSO)/radio-frequency (RF) communication has recently attracted world...

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Vydáno v:IEEE access Ročník 9; s. 108426 - 108440
Hlavní autoři: Nguyen, Thang K., Nguyen, Chuyen T., Le, Hoang D., Pham, Anh T.
Médium: Journal Article
Jazyk:angličtina
Vydáno: Piscataway IEEE 2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Analytical models
Automatic repeat request
error-control solutions
Errors
Free-space optical communication
hybrid FSO/RF last-mile
Internet
Internet access
Internet of Vehicles
Low earth orbit satellites
Low earth orbits
Mathematical models
Protocols
Radio frequency
Satellite broadcasting
Satellite networks
Satellites
TCP (protocol)
transmission control protocols
Vehicles
ISSN:2169-3536, 2169-3536
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Shrnutí:Recent years have witnessed a growing interest in Internet access from space assisted by low earth orbit (LEO) satellite networks. In the domain of the last-mile access for the Internet of Vehicles (IoV), hybrid free-space optical (FSO)/radio-frequency (RF) communication has recently attracted worldwide research efforts. While the transmission control protocol (TCP) is the most widely deployed transport protocol on the Internet, its performance in the error-prone environment of LEO satellite-assisted hybrid FSO/RF vehicular networks is not well understood. This paper develops a comprehensive analytical model based on the cross-layer approach for TCP performance, considering the FSO and RF satellite fading channels, modeled by the Gamma-Gamma and Nakagami-<inline-formula> <tex-math notation="LaTeX">m </tex-math></inline-formula> distributions, respectively. The error-control solutions, including the Reed-Solomon (RS) code and Selective repeat automatic repeat request (SR-ARQ), are also employed. Numerical results quantitatively demonstrate the impact of transmission errors at last-mile links and different parameters/settings of error-control solutions on the TCP performance. The paper also supports the selection of proper TCP variants for the considered networks.
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ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2021.3101903