Title :
An Anti-multipath Timing Synchronization Scheme for MB-OFDM Systems
Author :
Ya-Mei Du ; Li-Jun Ge ; Jing-Hong Miao ; Qian-Nan Xue
Author_Institution :
Sch. of Electron. & Inf. Eng., Tianjin Polytech. Univ., Tianjin, China
Abstract :
This paper presents an intact scheme of timing synchronization for Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) Ultra Wide Band (UWB) systems. Frame detection and coarse timing are implemented with the Maximum Correlation (MC) method based on the first-band information of the preamble. Fine timing is achieved with the Minimum Energy Ratio (MER) method based on the information of all the three bands. Lag corrections are performed twice to avoid Inter-Symbol Interference (ISI). Simulations show that residual timing error can be kept at a small scale under multipath channels which can be compensated with channel in the frequency domain.
Keywords :
OFDM modulation; frequency-domain analysis; intersymbol interference; multipath channels; synchronisation; ultra wideband communication; ISI; MB-OFDM-UWB systems; MC method; MER method; antimultipath timing synchronization scheme; coarse timing; fine timing; frame detection; frequency domain; intact scheme; intersymbol interference; lag correction; maximum correlation method; minimum energy ratio method; multiband orthogonal frequency division multiplexing-ultrawide band systems; multipath channel; preamble first-band information; residual timing error; Channel estimation; Complexity theory; Correlation; OFDM; Signal to noise ratio; Synchronization; MB-OFDM; UWB; mean square root error; synchronization; timing error; wireless communication;
Conference_Titel :
Wireless Communication and Sensor Network (WCSN), 2014 International Conference on
Print_ISBN :
978-1-4799-7090-2
DOI :
10.1109/WCSN.2014.34
