| 基于LT喷泉码的WSNs抗WLAN干扰的实验研究 |
| |
| 引用本文： | 杨,凯,施伟斌,吕,涛.基于LT喷泉码的WSNs抗WLAN干扰的实验研究[J].传感器与微系统,2014(2):65-69. |
| |
| 作者姓名： | 杨 凯 施伟斌 吕 涛 |
| |
| 作者单位： | 上海理工大学光电信息与计算机工程学院,上海200093 |
| |
| 摘 要： | 针对无线传感器网络(WSNs)通信能力有限,易受到与其共享信道的无线局域网(WiFi)干扰的问题,提出一种采用纠删码——LT喷泉码编码来保证可靠传输的方法。该方法可以充分利用喷泉码的无码率特性,即发送端源源不断地发送经过LT码编码的编码包,接收端只要接收到足够数量的编码包,就能够成功恢复原始数据包。在CC2430为核心的平台上设计并实现了基于LT喷泉码的可靠传输协议,并在WLAN干扰情况下对其进行了性能测试。实验结果表明:基于LT喷泉码的可靠传输协议对WLAN的抗干扰效果显著。
|
| 关 键 词： | 无线传感器网络 LT喷泉码 无线局域网 信道干扰 |
Experimental study of WSNs based on LT fountain codes anti-interference to WLAN |
| |
| Affiliation: | YANG Kai;SHI Wei-bin;L(School of Optical-Electronic Information and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;U) Tao(School of Optical-Electronic Information and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China) |
| |
| Abstract: | Aiming at problem of limited communication ability and susceptible to interference from shared channel WiFi in wireless sensor networks （WSNs）,propose a method that uses erasure codes—LT fountain codes to guarantee the reliability of data delivery.It can make full use of the rateless characteristic of fountain codes,that is,the sender will continuously send encoded packets through encoding of LT code,just the receiver receives enough quantity of encoding packets,it can successfully restore original data packets.Reliable data transmission protocol based on LT fountain code is designed and implemented on platform uses CC2430 as core,meanwhile performance measurements are carried out with interference of WLAN.The experimental results show that the reliable data transmission protocol based on LT fountain codes has obvious effect on anti-interference. |
| |
| Keywords: | wireless sensor networks（WSNs） LT fountain codes WiFi channel interference |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
