Title :
PSS based time synchronization for 3GPP LTE downlink receivers
Author :
Yang, Xiumei ; Xiong, Yong ; Jia, Guoqing ; Fang, Weidong ; Zheng, Xiaoying
Author_Institution :
Key Lab. of Wireless Sensor Network & Commun., Shanghai Inst. of Microsyst. & Inf. Technol., Shanghai, China
Abstract :
Time synchronization based on primary synchronization signal (PSS) is investigated for 3GPP Long Term Evolution (LTE) downlink receivers. Frequency offset and low SNR are two factors which degrades the detection performance during initial synchronization. In the proposed scheme, the receiver performs sliding differential mirror correlation and further accumulates correlated results of multiple PSS transmission periods. During these procedures, differential operations eliminate the detrimental effect of frequency offset and performance at low SNR is further improved by superimposing multiple correlated results. Simulation results show that the proposed scheme can provide robust capabilities under fading scenarios.
Keywords :
3G mobile communication; Long Term Evolution; correlation methods; fading channels; radio receivers; 3GPP LTE downlink receivers; Long Term Evolution; PSS based time synchronization; detrimental effect elimination; fading scenarios; frequency offset; low SNR; multiple PSS transmission periods; primary synchronization signal; sliding differential mirror correlation; Correlation; Fading; Frequency synchronization; Mirrors; OFDM; Signal to noise ratio; Synchronization;
Conference_Titel :
Communication Technology (ICCT), 2011 IEEE 13th International Conference on
Conference_Location :
Jinan
Print_ISBN :
978-1-61284-306-3
DOI :
10.1109/ICCT.2011.6158015
