采用喷泉码的无线传感器网络数据编解码算法  

The Encoding and Decoding Algorithm Based on Fountain Code of WSNs

作　　者：彭小峰[1] 杨川[1] 王凯立[1] 王正旭[1] 

机构地区：[1]重庆理工大学电子信息与自动化学院,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2013年第11期69-73,共5页Journal of Chongqing University of Technology：Natural Science

基　　金：重庆市教委科学技术研究项目(KJ110814);重庆理工大学拔尖创新人才培养计划项目(BC201303)

摘　　要：针对传统的无线传感器网络可靠性机制效率不高的缺陷,提出了一种新的"喷泉码"编解码算法。通过理论分析喷泉码在无线传感器网络中数据传输的可行性,给出了具体的系统方案和模型,设计了基于喷泉码的无线传感器网络编解码算法。对典型的喷泉码——Raptor码在不同参数下的译码性能进行仿真分析。结果表明:通过合理设置参数,该算法能有效提高译码成功率,保证无线传感器网络的数据传输可靠性。Aiming at the ineffectiveness of traditional wireless Sensor Networks reliability mechanism, this paper put forward a new ＂fountain codes＂ codec algorithm. Through the theoretical analysis of fountain codes to ensure the feasibility of data transmission in Wireless Sensor Networks, it gave the system scheme and model of concrete, and designed a Wireless Sensor Networks coding and decoding algorithm based on fountain codes. The typical fountain codes, the decoding performance of Raptor codes in different parameters and simulation analysis were carried out. The results show that the rea-sonable parameters and algorithm can effectively improve the decoding success rate, ensuring the reli-ability of data transmission in Wireless Sensor Networks.

关 键 词：喷泉码 WSNS RAPTOR码 编解码算法 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]