流星突发通信中的混合ARQ技术研究

Research on Hybrid ARQ Technology in Meteor Burst Communication

流星突发通信是20世纪中期开始兴起的通信技术。它在可靠性、抗干扰性、生存能力以及费用上的优势使其在民用和军用领域得到广泛研究。主要对流星突发通信中的HARQ技术进行讨论,介绍了固定速率Ⅰ型、变速率Ⅰ型以及Ⅱ型HARQ的工作原理,进行了性能仿真和分析。仿真结果表明采用HARQ方案可以有效改善系统性能,增加吞吐量,Ⅱ型HARQ和变速率Ⅰ型HARQ的性能要优于固定速率Ⅰ型HARQ。

Meteor Burst Communications（MBC）,a communication technology appeared in the middle of 20th century,is widely studied in commercial and military field for its advantages of reliability,anti-jamming,survivability,and low cost.This article mainly discusses HARQ technology in meteor burst communication,gives the working principles of fixed-rate type-I HARQ,variable-rate type-I HARQ and type Ⅱ HARQ,including their performance simulation and analysis.The simulation results show that the HARQ scheme could effectively improve system performance,and increase its throughput,and type Ⅱ HARQ and variable-rate type-I HARQ are better than fixed-rate type-I HARQ.