Title :
Frame synchronization at the sound of silence
Author :
Villanti, Marco ; Iubatti, Matteo ; Vanelli-Coralli, Alessandro ; Corazza, Giovanni E.
Author_Institution :
DEIS/ARCES, Bologna Univ., Italy
fDate :
28 Nov.-2 Dec. 2005
Abstract :
A novel approach is introduced for the design of the unique word (UW) to be inserted into TDM/TDMA systems for frame synchronization purposes. In particular, the UW is composed by all zero symbols that are distributed along the frame in order to improve the autocorrelation properties. The resulting UW is identified as silent-UW (S-UW). We show in this paper that S-UW leads to an optimum detector with very limited complexity, and with performance that can be significantly better than the classic UW in the presence of frequency offsets or at moderate to high signal-to-noise ratios. A fully analytical performance characterization is presented reporting also comparisons with state-of-the-art alternatives.
Keywords :
synchronisation; time division multiple access; time division multiplexing; TDM; TDMA; autocorrelation properties; frame synchronization; signal-to-noise ratios; silent unique word; Autocorrelation; Detectors; Face detection; Frequency estimation; Frequency synchronization; Interference; Performance analysis; Time division multiple access; Time division multiplexing; Uncertainty;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1577869