Adaptive HARQ with Channel State Information in Inter-HAP FSO Links
Konferenz: Photonische Netze - 18. ITG-Fachtagung
11.05.2017 - 12.05.2017 in Leipzig, Deutschland
Tagungsband: Photonische Netze
Seiten: 6Sprache: EnglischTyp: PDF
Persönliche VDE-Mitglieder erhalten auf diesen Artikel 10% Rabatt
Autoren:
Parthasarathy, Swaminathan; Giggenbach, Dirk (Institute of Communications and Navigation, German Aerospace Centre (DLR), 82234 Wessling, Germany)
Kirstaedter, Andreas (Institute of Communication Networks and Computer Engineering, University of Stuttgart, 70569 Stutt)
Inhalt:
This paper investigates the impact of different Channel State Information (CSI) on code-rate adaptive Hybrid ARQ protocols over inter-HAP (High Altitude Platform) FSO fading channel. Perfect, delayed, reciprocal and fixed-mean CSI are considered in the investigation. We study in particular the transmission efficiency of HARQ protocols where the code rate of a RS code is adapted to different CSI. Simulation results show that adaptive code rate based on correctly chosen CSI significantly outperforms HARQ with a non adaptive mechanism providing improved overall performance.