摘要
本文提出了一种适用于无线ATM系统的混合纠错方案:用RS码保护话音信号,用截短RS/混合Ⅱ型ARQ保护图像和数据。文中分析和仿真了这一混合纠错方案在突发信道上的性能。结果表明,利用RS码强的纠错能力,通过有限次的重传就可获得低的信元丢失率和传输时延。
This paper proposes a hybrid error control scheme suitable for wireless ATM systems, that is, voice telephone is protected by pure RS code, video and data are protected by truncated RS/Type II hybrid ARQ protocol. The performance of this hybrid error control scheme over bursty channels is analyzed and simulated. It is found that, by restricting numbers of retransmission, low transmission delay and cell loss rate can be obtained.
