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首页> 外文期刊>International Journal of Satellite Communications and Networking >HARQ-ARQ interaction method for LTE-based mobile satellite communication system
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HARQ-ARQ interaction method for LTE-based mobile satellite communication system

机译:基于LTE的移动卫星通信系统的HARQ-ARQ交互方法

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摘要

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.
机译:考虑到陆地环境的极短传播延迟,设计了陆地长期演进(LTE)系统的混合自动重传请求(HARQ)和自动重传请求(ARQ)。因此,当HARQ和ARQ被应用于基于LTE的移动卫星通信系统时,效率低下是由于卫星环境的长传播延迟引起的。为了减少基于LTE的移动卫星通信系统中的低效率,本文提出了HARQ和ARQ之间的交互方法。在我们的交互方法中,还保留了关于HARQ和ARQ的分层体系结构的现有概念。仿真结果表明,在所有环境下,我们提出的方案都可以提供比非交互方案更大的频谱效率。通过交互方法,性能可以提高2.04倍。

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