Paper Info
Title
A simply-differential low-complexity primary synchronization scheme for 3GPP LTE systems
Abstract
In this paper, downlink primary synchronization for LTE systems is investigated, including time synchronization and sector identification. The proposed scheme exploits the Primary Synchronization Signal which is generated from known Zadoff-Chu sequences. Unlike the conventional schemes, in which time synchronization is first processed then the demodulated OFDM symbols are cross-correlated with the known Zadoff-Chu sequences for sector identification, the proposed scheme simultaneously achieves both tasks. To this aim, the received signal is differentially auto-correlated and compensated with a frequency offset whose value depends on the used Zadoff-Chu sequence. The same metric allows detecting both the symbol timing and the sector identifier. Simulation results, carried in additive white Gaussian noise and Rayleigh multipath channels, show the efficiency and reliability of the proposed primary synchronization scheme. We note that, compared to former methods, the proposed one not only leads to performance enhancement but also realizes a considerable complexity reduction.
Year
Venue
Keywords
2014
Signal Processing Conference
3G mobile communication,AWGN,Long Term Evolution,OFDM modulation,Rayleigh channels,multipath channels,synchronisation,3GPP LTE systems,Rayleigh multipath channels,Zadoff-Chu sequences,additive white Gaussian noise,cross-correlation,demodulated OFDM symbols,downlink primary synchronization,primary synchronization signal,sector identification,simply-differential low-complexity primary synchronization,symbol timing,time synchronization,3GPP LTE,OFDM,Zadoff-Chu sequences,sector search,time synchronization
DocType
ISSN
Citations 
Conference
2076-1465
0
PageRank 
References 
Authors
0.34
1
3
Name
Order
Citations
PageRank
Leila Nasraoui1144.88
Leïla Najjar Atallah2245.55
Mohamed Siala3248.48