卫星通信系统中应用HARQ的性能分析  

Analyze the Performance of HARQ in Satellite Communication System

作　　者：张忠超[1] 吴久银[2] 张强龙[1] 

机构地区：[1]解放军理工大学通信工程学院研究生4队,南京210007 [2]解放军理工大学通信工程学院卫星通信系,南京210007

出　　处：《无线通信技术》2010年第4期25-30,36,共7页Wireless Communication Technology

摘　　要：无线通信中常用的差错控制方式有ARQ、FEC、HARQ三种,前两种各有特点,分别通过重传机制和纠错机制来实现。基于前两种方式的不足,提出了HARQ差错控制方式,HARQ作为3G中的核心技术,对提高数据的可靠性,有效性起到了重要的作用,但在卫星通信方面的应用还没有得到深入研究,本文主要通过仿真的手段比较三种差错控制方式的性能,进而为HARQ在卫星上应用提供依据。The three modes which are ARQ,FEC and HARQ are usually used to ensure the free error, but because of the shortage of ARQ and FEC, people advanced a new system -HARQ, the application of HARQ technique is successful in the 3G mobile communication system and play an important role in improving the data transmission and throughput. However, the research of this technique is not in - depth in satellite communication system, this paper mainly compare the performance of three error - control modes by emulation to provide a foundation for apply this technique in satellite communication.

关 键 词：差错控制 混合自动请求重传(HARQ) 卫星通信 

分 类 号：TN911[电子电信—通信与信息系统]