Research Article
A Modified Algorithm of Synchronization Signal Detection for LTE Initial Cell Search
@INPROCEEDINGS{10.1109/ChinaCom.2011.6158342, author={Yukai Gao and Gang Zhu and Xia Chen and Di Wu and Buri Ban}, title={A Modified Algorithm of Synchronization Signal Detection for LTE Initial Cell Search}, proceedings={1st International ICST Workshop on Wireless Communications for High Speed Rail}, publisher={IEEE}, proceedings_a={HSR COM}, year={2012}, month={3}, keywords={lte; cell search; synchronization signal; pss; sss;}, doi={10.1109/ChinaCom.2011.6158342} }- Yukai Gao
Gang Zhu
Xia Chen
Di Wu
Buri Ban
Year: 2012
A Modified Algorithm of Synchronization Signal Detection for LTE Initial Cell Search
HSR COM
IEEE
DOI: 10.1109/ChinaCom.2011.6158342
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).