Title
An efficient synchronization signal structure for OFDM-based cellular systems
Abstract
OFDM has been a widely accepted technology in high rate and multimedia data service systems such as long term evolution (LTE) in the 3rd generation partnership project (3GPP). In this paper, we investigate a synchronization signal structure and corresponding cell search algorithm in the LTE system where two, primary and secondary synchronization signals are employed. We focus on the secondary synchronization signal which possesses two layered scrambling sequences in addition to basic sequences. These scrambling sequences minimize performance degradation in cell search, but incur a high complexity to a mobile station receiver. In this paper, we propose a new secondary synchronization signal structure which does not require additional scrambling sequences while maintaining almost the same performance as the current LTE scheme. We evaluate the performance of the proposed scheme under various channel environments by examining the impacts of multipath fading, frequency offset, and vehicular speed. We also compare the complexity of the proposed scheme with the LTE scheme.
Year
DOI
Venue
2010
10.1109/TWC.2010.01.090516
IEEE Transactions on Wireless Communications
Keywords
Field
DocType
detectors,degradation,fading,orthogonal frequency division multiplexing,mobile station,signal processing,intrusion detection,lte,synchronization,synchronisation,search algorithm,wireless communication,correlators,ofdm modulation,frequency offset,multipath fading,ofdm,service system
Multipath propagation,Synchronization,Scrambling,Fading,Mobile station,Frequency offset,Computer network,Communication channel,Real-time computing,Orthogonal frequency-division multiplexing,Mathematics
Journal
Volume
Issue
ISSN
9
1
1536-1276
Citations 
PageRank 
References 
12
0.78
3
Authors
3
Name
Order
Citations
PageRank
Il Gyu Kim1398.73
Youngnam Han279886.80
Hyun Kyu Chung37718.37