Transfer time analysis of file transfer framework with AL-FEC in SOTM networks

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.

Overall Design of Satellite Networks for Internet Services with QoS Support

“…Generally, the TCP accelerator, the data compression, and the caching are used in the PEP in the satellite network [21,36]. Another concern is the support of the OTM terminal in the satellite network [37,38]. In the OTM terminal, the active control system for the antenna pointing toward a satellite should be addressed [37].…”

“…In the OTM terminal, the active control system for the antenna pointing toward a satellite should be addressed [37]. Since temporary outage can occur by channel blockage due to pointing errors of the antenna and obstructions such as tunnels, high buildings, and trees, a data transfer mechanism such as an application layer forward error correction is also addressed in the satellite network to compensate the effect of temporary channel outage [38][39][40].…”

Performance Evaluation of TCP in Hybrid Satellite-Terrestrial Relay Networks

“…2) UDP 기반 AL-FEC 기법 적용: UDP 기반의 AL-FEC 기법이 TCP 대신 데이터 전송이 적용된다 면 지상 모바일 위성 통신환경에서 데이터 전송의 신 뢰성을 보장하면서 데이터 전송 처리율 성능을 향상 할 수 있다 [12] . …”