摘要
为了保证数据在无线衰落信道条件下的可靠传输,产生了联合前向纠错编码(FEC)与自动请求重传(ARQ)的混合ARQ(HARQ)技术。HARQ有多种重传方案,本文针对HARQ的无限次重传方案进行了研究,提出了一种改进的基于RCPT码的HARQ重传方案,并分别与传统RCPT-HARQ方案在瑞利快衰落、慢衰落信道下进行仿真比较,仿真结果显示出改进方案在慢衰落信道条件下获得了更高的通过率。
In fading and shadowing channels, error control techniques are used for the reliable transmission. As a combination of forward error correction and automatic repeat request （ARQ）, Hybrid ARQ （HARQ） protocol provides both of the advantages. In this paper, an improved HARQ scheme using RCPT （Rate Compatible Punctured Turbo） codes is compared with traditional RCPT - HARQ scheme in fast and slow Rayleigh fading channels. Simulation results show that the proposed scheme has high throughput in slow Rayleigh fading channels.
出处
《电讯技术》
2005年第6期33-37,共5页
Telecommunication Engineering
基金
国家自然科学基金资助项目(60372067)
国家863计划项目(2002AA119010)
