Title :
Research on Downlink Synchronization for TETRA Release II
Author :
Hongpeng Liu ; Dongping Yao ; Jiachun Liao
Author_Institution :
State Key Lab. of Rail Traffic Control & Safety, Beijing Jiaotong Univ., Beijing, China
Abstract :
A frequency-timing synchronization scheme for the downlink of filtered multitone modulation (FMT) based Terrestrial Trunked Radio (TETRA) system is presented. To achieve high-rate data transmission and better transmission quality, TETRA2 has been proposed in recent years. However, there are serious issues with the new wide-band TETRA system in frequency-timing synchronization. TETRA mainly specifies 2 sequences for downlink synchronization, i.e. downlink sync sequence set (DSS) and frequency correction set (FrCS). Researching the cross-correlation properties of these sequences and the existing data-aided synchronization algorithm for FMT, we propose an efficient method to estimate the frequency-offset and timing-offset for TETRA2 and analyze its performance in AWGN.
Keywords :
AWGN channels; correlation methods; data communication; modulation; radio links; synchronisation; timing; AWGN; DSS; FMT; FrCS; TETRA Release II; cross-correlation properties; data-aided synchronization algorithm; downlink sync sequence set; downlink synchronization; filtered multitone modulation; frequency correction set; frequency-offset estimation; frequency-timing synchronization; high-rate data transmission; performance analysis; terrestrial trunked radio system; timing-offset estimation; transmission quality; wideband TETRA system; Frequency estimation; Frequency modulation; Frequency synchronization; OFDM; Synchronization; DSS; FMT; FrCS; TETRA; downlink;
Conference_Titel :
Parallel and Distributed Computing, Applications and Technologies (PDCAT), 2012 13th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-0-7695-4879-1
DOI :
10.1109/PDCAT.2012.116
