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Transport layer performance combining multipath and network coding in mobile satellite networks
Author(s) -
Giambene Giovanni,
Luong Doanh Kim,
Le Van Anh,
de Cola Tomaso,
Muhammad Muhammad
Publication year - 2017
Publication title -
international journal of satellite communications and networking
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.388
H-Index - 39
eISSN - 1542-0981
pISSN - 1542-0973
DOI - 10.1002/sat.1231
Subject(s) - computer science , goodput , computer network , linear network coding , network packet , transport layer , multiple description coding , multipath propagation , exploit , encoder , network congestion , network layer , transmission control protocol , link layer , quality of service , wireless , telecommunications , channel (broadcasting) , throughput , layer (electronics) , chemistry , computer security , organic chemistry , operating system
Summary Satellite networks are expected to support multimedia traffic flows, offering high capacity with quality of service guarantees. In this paper, we consider future satellite networks able to exploit multiple paths to reach mobile users also by means of a terrestrial complementary coverage. The interest is to exploit the path diversity by adopting network coding at a shim layer between Internet protocol and media access control. We have proposed several variants of network‐coding schemes with different organizations in terms of interflow and intraflow encoding, where the packets generated by the encoder are split and sent on different paths. Our path‐based network coding (PBNC) techniques have been combined with multipath transmission control protocol (MPTCP) and TCP at transport layer, thus obtaining PBNC‐MPTCP and PBNC‐TCP. We have evaluated the performance of these techniques by means of Ns‐2 simulations. A cross‐layer criterion has been adopted to determine the settings of the encoders. Our PBNC‐based schemes have shown better goodput performance than a benchmark scheme considering 2 different scenarios (one with symmetrical paths and one with unbalanced paths) in the presence of GOOD/BAD mobile channels.