摘要
常权编码是抑制光学相机通信系统中发光二极管闪烁的一种有效方法。在给定的码字长度,为找到最合适的编码方案,本文提出了一种基于跳的算法,实现了数量级优于暴力算法的时间效率。我们发现了闪烁抑制和编码效率之间的权衡,同时发现了较大的权重利于闪烁抑制。
Constant-weight coding（ CWC） is found to be an effective method to mitigate the lighting flicker of LED in an optical camera communication system. To find the optimum coding scheme of CWC at a given codeword length,a hop-based algorithm is proposed in this work,with a time efficiency exceeding that of the brute-force method by several order of magnitude. Trade-off between flicker mitigation and coding efficiency is found and a larger weight of CWC benefits the flicker mitigation.
作者
耿秋实
张文英
戴永恒
GENG Qiu-shi;ZHANG Wen-ying;DAI Yong-heng(China Academy of Electronics and Information Technology, Beijing 100041, China)
出处
《中国电子科学研究院学报》
北大核心
2018年第2期136-139,共4页
Journal of China Academy of Electronics and Information Technology
基金
中国博士后科学基金项目(2015M581145)
关键词
光学相机通信
常权编码
闪烁抑制
Optical camera communication
constant-weight coding
flicker mitigation
