计算机技术与发展
計算機技術與髮展
계산궤기술여발전
COMPUTER TECHNOLOGY AND DEVELOPMENT
2015年
1期
234-237
,共4页
无线传感网%网络编码%汇播%同步%收集率
無線傳感網%網絡編碼%彙播%同步%收集率
무선전감망%망락편마%회파%동보%수집솔
wireless sensor networks%network coding%convergecast%synchronization%collection rate
网络编码被应用于多播、广播和单播中。而把网络编码应用于无线传感网汇播的研究还处于理论和仿真阶段。把网络编码应用于实际环境中,需要考虑节点同步、开销控制、线性独立的编码系数等问题。为了研究网络编码对传统汇播的影响,文中在真实无线传感网中实现了一种基于网络编码的汇播机制。文中基于TDMA实现同步和开销控制,采用线性网络编码来进行编码,采用高斯消除来进行解码。文中以收集率为参考,实验结果表明,网络编码能给传统汇播带来可靠性增益。
網絡編碼被應用于多播、廣播和單播中。而把網絡編碼應用于無線傳感網彙播的研究還處于理論和倣真階段。把網絡編碼應用于實際環境中,需要攷慮節點同步、開銷控製、線性獨立的編碼繫數等問題。為瞭研究網絡編碼對傳統彙播的影響,文中在真實無線傳感網中實現瞭一種基于網絡編碼的彙播機製。文中基于TDMA實現同步和開銷控製,採用線性網絡編碼來進行編碼,採用高斯消除來進行解碼。文中以收集率為參攷,實驗結果錶明,網絡編碼能給傳統彙播帶來可靠性增益。
망락편마피응용우다파、엄파화단파중。이파망락편마응용우무선전감망회파적연구환처우이론화방진계단。파망락편마응용우실제배경중,수요고필절점동보、개소공제、선성독립적편마계수등문제。위료연구망락편마대전통회파적영향,문중재진실무선전감망중실현료일충기우망락편마적회파궤제。문중기우TDMA실현동보화개소공제,채용선성망락편마래진행편마,채용고사소제래진행해마。문중이수집솔위삼고,실험결과표명,망락편마능급전통회파대래가고성증익。
Network coding is applied in multicast,broadcast and unicast. But the study of applying network coding in convergecast in wireless sensor networks is still at the theory and simulation stage. Applying network coding in real environment, the questions like nodes' synchronization,overhead control and linear independent coding coefficient should be considered. For studying the influence of network coding to traditional convergecast,network coding-based convergecast scheme in real wireless sensor network is realized in this paper. The nodes' synchronization and overhead control is realized based on TDMA,and linear network coding is used to do encoding, and Gaussian elimination is applied to do decoding. Collection rate is adopted as reference,and the results show that network coding can bring reliable gains to traditional convergecast.