Research Article
Application Layer Channel Coding for Space DTN
@INPROCEEDINGS{10.1007/978-3-319-73564-1_34, author={Dongxu Hou and Kanglian Zhao and Wenfeng Li}, title={Application Layer Channel Coding for Space DTN}, proceedings={Machine Learning and Intelligent Communications. Second International Conference, MLICOM 2017, Weihai, China, August 5-6, 2017, Proceedings, Part I}, proceedings_a={MLICOM}, year={2018}, month={2}, keywords={Delay/disruption tolerant networking Application layer Reed-Solomon channel coding}, doi={10.1007/978-3-319-73564-1_34} }- Dongxu Hou
Kanglian Zhao
Wenfeng Li
Year: 2018
Application Layer Channel Coding for Space DTN
MLICOM
Springer
DOI: 10.1007/978-3-319-73564-1_34
Abstract
Space communications have the characteristics of long link delays, frequent link disruptions and high error rates. With reliable Licklider Transmission Protocol (LTP) or Transmission Control Protocol (TCP), automatic repeat request (ARQ) is applied to enable reliable data delivery in delay/disruption tolerant networking (DTN). However, ARQ is inefficient for space communications especially in links with long round trip time (RTT). In this paper, an application layer Reed-Solomon (ALRS) channel coding scheme is proposed, which is further combined with ARQ to guarantee reliable transmission in DTN architecture. The proposed ALRS coding scheme is implemented in open source ION-DTN software and its performance is evaluated on a dedicated testbed. The results of the experiments show that this scheme in DTN can be speed up in most scenarios compared with ARQ-only scheme. With coding in application layer, the scheme is also more compatible with the overlay characteristic of DTN.