Research On Scrambling Code And Mapping Between Load And Transmission Signal In WLAN Based Soft Coding Technology

Communication technology is one of the fastest developing and updating technologies in the world,and wireless communication technology is the most important and widely used technology.With the popularity of the Internet,sensors,and various digital terminal devices,an interconnected world is taking shape,followed by the generation and coexistence of a large amount of information data caused by the interaction between different signals,as well as data packet transmission reliability and security issues.In order to solve these problems,various research directions of codec have been derived,and soft coding technology is a key technology needed for the research.Soft coding technology although absolute performance hard coding technology is some lower,but the technology of parameter adjustment is more convenient,has a good applicability,modifiability and through soft coding technique can more granular was studied for the channel,to solve the present wireless network environment the challenges faced by a great deal of help.Currently,the mainstream applications of soft coding technology are mainly cross-communication technology,data security and reliability transmission,etc.,in addition to which there are other applications.In this paper,the key technologies of soft encoder/decoder are the control of the initial value of the scrambler and the bidirectional mapping of the data transmission and reception in the operation of the scrambler and the unscrambler.By modifying the control of the initial value of the scrambled code,the data packets sent can be better controlled and predicted.Therefore,the interaction of data packets between different signals can be realized,the tracking and capture of data packets sent by devices can be realized,and the perfect research of data security can be conducted.In addition,this paper also describes a bidirectional mapping of communication transmission reception that can preserve the mapping after nonlinear coding.This method is based on the implementation of LDPC,but also applicable to other coding methods,with a certain universality,the channel quality can be studied through this method,so as to carry out carrier allocation,improve the reliability of communication.I hope that my research can provide some help for other peers.