【摘要】 为了克服无线光通信中的光强闪烁、大气衰减等信道干扰 ,本文结合无线光信道下Turbo码迭代译码算法 ,分析了RCPT码的穿孔图案特性 ,在此基础上完整给出了无线光通信系统RCPT/ARQ自适应差错控制方案 ,仿真表明RCPT/ARQ自适应差错控制方案显著提高了链路的吞吐量和稳定性 .同时结合无线光信道的特性 ,提出了RCPT/ARQ机制下的排序重发策略 ,进一步优化系统在恶劣信道条件下的链路吞吐量 .更多还原

【Abstract】 In order to overcome fading in optical wireless channel,such as attenuation and scintillation,this paper introduces the adaptive rate compatible punctured turbo coded ARQ scheme in optical wireless communication based on analysis of puncturing patterns.Simulations show that the adaptive error control scheme improves the throughput and stability of optical wireless link.Moreover,this paper proposes the rank retransmitting protocol to further improve throughput efficiency under adverse channel conditions according to optical wireless channel characteristic.更多还原