WU Dan, TIAN Ya-fei, YANG Chen-yang. On the transmission time of fountain code based parallel relay network[J]. 2010, 31(8): 121-126.DOI:
喷泉码多路并行转发中继系统传输时间分析
摘要
为了降低传输协议的复杂度
避免引入大量的反馈链路
将喷泉码应用于多级多路并行中继网络中进行开环差错控制。给出了采用喷泉码编码时的网络传输方案和帧格式
分析并比较了基于喷泉码方案和基于自动重传请求方案的传输时间。研究表明
应用喷泉码时系统的传输时间远小于应用ARQ时的传输时间
并且随着中继数的增加
喷泉码方案的优势越来越明显。
Abstract
In order to reduce the complexity of transmission protocols and the number of feedback links
fountain code was applied to the multi-stage parallel relay network for open-loop error control.The fountain code based network trans-mission scheme and frame format were presented.The transmission time for both the fountain code based scheme and the conventional ARQ based scheme was analyzed and compared.Results show that the total time consumed under fountain code based scheme can be significantly reduced compared to the ARQ based scheme.With the increase of relay numbers
the advantage of the fountain code based scheme is more evident.