Title :
Blind estimation of frequency offset and time delay in uplink OFDMA
Author :
Hua, Meng ; Zhu, Jinkang
Author_Institution :
PCN&SS Lab., Univ. of Sci. & Technol. of China, Hefei, China
fDate :
30 May-1 June 2005
Abstract :
In this article, we propose a blind synchronization algorithm for the uplink OFDMA system. The algorithm exploits the second-order cyclostationarity of the received signal, to estimate the frequency offset and time delay under the different subcarrier allocation schemes. The performance of high resolution and immune to the effect of noise and interference is evaluated through simulation results.
Keywords :
3G mobile communication; delays; frequency division multiple access; frequency estimation; radio links; synchronisation; blind estimation; blind synchronization algorithm; frequency offset; second-order cyclostationarity; subcarrier allocation schemes; time delay; uplink OFDMA system; Base stations; Delay effects; Delay estimation; Frequency conversion; Frequency estimation; Frequency synchronization; Interference; Radio spectrum management; Signal resolution; Telephony;
Conference_Titel :
Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st
Print_ISBN :
0-7803-8887-9
DOI :
10.1109/VETECS.2005.1543625
