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HARQ–ARQ interaction method for LTE‐based mobile satellite communication system
Author(s) -
Hong Tae Chul,
Kang KunSeok,
Ku BonJun,
Ahn DoSoeb
Publication year - 2014
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.1052
Subject(s) - hybrid automatic repeat request , computer science , automatic repeat request , real time computing , selective repeat arq , computer network , satellite system , satellite , inefficiency , telecommunications link , telecommunications , engineering , global positioning system , gnss applications , economics , microeconomics , aerospace engineering
SUMMARY Hybrid automatic repeat request (HARQ) and automatic repeat request (ARQ) of the terrestrial long‐term evolution (LTE) system are designed considering the very short propagation delay of terrestrial environment. Therefore, when HARQ and ARQ are applied to the LTE‐based mobile satellite communication system, the inefficiency is caused by the long propagation delay of satellite environment. This paper proposes the interaction method between HARQ and ARQ for the decrease of inefficiency in the LTE‐based mobile satellite communication system. The existing concept of layered architecture about HARQ and ARQ is also maintained in our interaction method. Simulation results reveal that our proposed scheme can provide the larger spectrum efficiency than that of the non‐interaction scheme in all environments. The performance improvement can be up to 2.04 times through the interaction method. Copyright © 2014 John Wiley & Sons, Ltd.