Research on Fountain Codes in Cognitive Radio Network
Siwei Li · Journal of Civil Aviation University of China · 2011
In Cognitive Radio Network,user′s frequency and link quality are time-varying seriously because of uncertain time and frequency of user′s authorization signal.Fountain codes theory was proposed to solve this problem.The fountain code′s principles and simulation and analysis of system characteristic of CRN applicated with fountain code are discussed.This paper combine fountain code technology with CRN′s protocol technology because of fountain code′s characteristics of needn't feedback and simple code and decode technology to maintain link of time-varying channel environment and to improve the transmission performance of system.