Abstract
In this paper, we propose a fully reliable file-transfer framework with application layer forward error correction (AL-FEC) in satellite communications on the move (SOTM) systems. In particular, the proposed framework uses a two-way acknowledgement (ACK) exchange mechanism. The proposed framework is implemented into a performance-enhancing proxy to minimize the system change. Furthermore, we analyze the file-transfer time of the proposed framework by Markov chain. The analysis results show that the proposed framework outperforms TCP in terms of the file-transfer time and the goodput. Furthermore, in the transfer of a large-sized file, the overhead of the proposed AL-FEC mechanism is small in terms of the resource efficiency.
Highlights
Satellite communications on the move (SOTM) systems have become an essential part of commercial and military communications because they offer the high-speed wireless link to moving vehicles such as maritime vessels, trains, and land vehicles through a satellite [1,2,3]
In satellite communications using retransmission of TCP, even though optimized TCP can be applied to satellite link by a performance enhancing proxy (PEP) [4, 5], the throughput can be sharply reduced within a lossy environment because of the coupling of the congestion control and losses in TCP
We propose a fully reliable file-transfer framework (FRFTF) with application layer forward error correction (AL-forward error correction (FEC)) in SOTM networks to minimize the additional system change
Summary
Satellite communications on the move (SOTM) systems have become an essential part of commercial and military communications because they offer the high-speed wireless link to moving vehicles such as maritime vessels, trains, and land vehicles through a satellite [1,2,3]. The link between the SOTM terminal and the satellite can experience a temporary outage owing to channel blockage due to pointing errors of the antenna on account of the rugged terrain and obstructions such as high buildings and trees. It can cause packet loss in the satellite link [2, 3]. We propose a fully reliable file-transfer framework (FRFTF) with AL-FEC in SOTM networks to minimize the additional system change. A performance analysis model evaluating the performance of the reliable AL-FEC mechanism with Markov chain model
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