{"title":"模拟联合源信道编码方案的物理层安全性研究","authors":"E. Hodgson, G. Brante, R. Souza, J. L. Rebelatto","doi":"10.1109/SPAWC.2015.7227105","DOIUrl":null,"url":null,"abstract":"We propose the use of discrete-time all-analog joint source-channel coding over wireless channels in order to provide protection against eavesdropping. We consider a bandwidth expansion scheme using non-linear spiral-like curves and maximum likelihood detection with linear minimum mean square error estimation. Moreover, the transmitter uses truncated channel inversion, which significantly increases the signal-to-distortion ratio (SDR) at the intended receiver while keeping a low SDR at the eavesdropper. By considering the security gap as the performance metric, which is defined as the ratio between the channel signal-to-noise ratio (CSNR) of the legitimate receiver and of the eavesdropper for a given pair of target SDRs, we show that partial secrecy is possible in this setup.","PeriodicalId":211324,"journal":{"name":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2015-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"On the physical layer security of analog joint source channel coding schemes\",\"authors\":\"E. Hodgson, G. Brante, R. Souza, J. L. Rebelatto\",\"doi\":\"10.1109/SPAWC.2015.7227105\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We propose the use of discrete-time all-analog joint source-channel coding over wireless channels in order to provide protection against eavesdropping. We consider a bandwidth expansion scheme using non-linear spiral-like curves and maximum likelihood detection with linear minimum mean square error estimation. Moreover, the transmitter uses truncated channel inversion, which significantly increases the signal-to-distortion ratio (SDR) at the intended receiver while keeping a low SDR at the eavesdropper. By considering the security gap as the performance metric, which is defined as the ratio between the channel signal-to-noise ratio (CSNR) of the legitimate receiver and of the eavesdropper for a given pair of target SDRs, we show that partial secrecy is possible in this setup.\",\"PeriodicalId\":211324,\"journal\":{\"name\":\"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-08-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/SPAWC.2015.7227105\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/SPAWC.2015.7227105","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
On the physical layer security of analog joint source channel coding schemes
We propose the use of discrete-time all-analog joint source-channel coding over wireless channels in order to provide protection against eavesdropping. We consider a bandwidth expansion scheme using non-linear spiral-like curves and maximum likelihood detection with linear minimum mean square error estimation. Moreover, the transmitter uses truncated channel inversion, which significantly increases the signal-to-distortion ratio (SDR) at the intended receiver while keeping a low SDR at the eavesdropper. By considering the security gap as the performance metric, which is defined as the ratio between the channel signal-to-noise ratio (CSNR) of the legitimate receiver and of the eavesdropper for a given pair of target SDRs, we show that partial secrecy is possible in this setup.