{"title":"一种新型的OFDM码元同步前导,在窄带信道中优于基于pn的前导","authors":"Maher Umari, K. Razazian, O. Petrovska","doi":"10.1109/MWSCAS.2010.5548699","DOIUrl":null,"url":null,"abstract":"A new preamble for correlation-based symbol synchronization schemes in narrowband channels is presented. While autocorrelation properties of Pseudo-noise (PN) sequence preambles make them very well suited for symbol synchronization in wideband channels, the same is not necessarily true in narrowband channels. In fact, a narrowband preamble that has a cross-correlation - between the input and output of the channel - with smaller side lobes than a PN-based preamble can lead to better symbol synchronization in narrowband channels. Such a preamble is presented along with simulation results showing the performance of a typical symbol synchronization scheme when using the proposed narrowband preamble vs. a PN-based preamble.","PeriodicalId":245322,"journal":{"name":"2010 53rd IEEE International Midwest Symposium on Circuits and Systems","volume":"47 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"A novel preamble for OFDM symbol synchronization that can outperform PN-based preambles in narrowband channels\",\"authors\":\"Maher Umari, K. Razazian, O. Petrovska\",\"doi\":\"10.1109/MWSCAS.2010.5548699\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A new preamble for correlation-based symbol synchronization schemes in narrowband channels is presented. While autocorrelation properties of Pseudo-noise (PN) sequence preambles make them very well suited for symbol synchronization in wideband channels, the same is not necessarily true in narrowband channels. In fact, a narrowband preamble that has a cross-correlation - between the input and output of the channel - with smaller side lobes than a PN-based preamble can lead to better symbol synchronization in narrowband channels. Such a preamble is presented along with simulation results showing the performance of a typical symbol synchronization scheme when using the proposed narrowband preamble vs. a PN-based preamble.\",\"PeriodicalId\":245322,\"journal\":{\"name\":\"2010 53rd IEEE International Midwest Symposium on Circuits and Systems\",\"volume\":\"47 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-08-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 53rd IEEE International Midwest Symposium on Circuits and Systems\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSCAS.2010.5548699\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 53rd IEEE International Midwest Symposium on Circuits and Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSCAS.2010.5548699","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A novel preamble for OFDM symbol synchronization that can outperform PN-based preambles in narrowband channels
A new preamble for correlation-based symbol synchronization schemes in narrowband channels is presented. While autocorrelation properties of Pseudo-noise (PN) sequence preambles make them very well suited for symbol synchronization in wideband channels, the same is not necessarily true in narrowband channels. In fact, a narrowband preamble that has a cross-correlation - between the input and output of the channel - with smaller side lobes than a PN-based preamble can lead to better symbol synchronization in narrowband channels. Such a preamble is presented along with simulation results showing the performance of a typical symbol synchronization scheme when using the proposed narrowband preamble vs. a PN-based preamble.