{"title":"A modified algorithm of synchronization signal detection for LTE initial cell search","authors":"Yukai Gao, Gang Zhu, Xia Chen, Di Wu, Buri Ban","doi":"10.1109/ChinaCom.2011.6158342","DOIUrl":null,"url":null,"abstract":"For the Long Term Evolution (LTE) system in 3rd Generation Partnership Project (3GPP), the calculation of synchronization signal detection algorithm is very complex. According to the properties of the primary synchronization signal (PSS) and the secondary synchronization signal (SSS), a modified algorithm is proposed in this paper, which processes correlation of the received samples only once with sum of local PSS sequences to obtain the position of PSS and detects the position of SSS previously to reduce the times of SSS detection. The theoretical derivation and complexity of both conventional and modified algorithms are derived and compared. It comes to the conclusion that the modified algorithm can reduce at least 60% calculation. Finally through simulation, the algorithm has excellent performance in high mobility channel model Spatial Channel Model Extended (SCME).","PeriodicalId":339961,"journal":{"name":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"12","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 6th International ICST Conference on Communications and Networking in China (CHINACOM)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ChinaCom.2011.6158342","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 12
Abstract
For the Long Term Evolution (LTE) system in 3rd Generation Partnership Project (3GPP), the calculation of synchronization signal detection algorithm is very complex. According to the properties of the primary synchronization signal (PSS) and the secondary synchronization signal (SSS), a modified algorithm is proposed in this paper, which processes correlation of the received samples only once with sum of local PSS sequences to obtain the position of PSS and detects the position of SSS previously to reduce the times of SSS detection. The theoretical derivation and complexity of both conventional and modified algorithms are derived and compared. It comes to the conclusion that the modified algorithm can reduce at least 60% calculation. Finally through simulation, the algorithm has excellent performance in high mobility channel model Spatial Channel Model Extended (SCME).
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