Title :
A fast burst synchronization for OFDM based wireless asynchronous transfer mode systems
Author :
Kim, Taekwan ; Cho, Namshin ; Cho, Jaehee ; Bang, Keukjoon ; Kim, Kwangchul ; Park, Hyunchoil ; Hong, Daesik
Author_Institution :
Dept. of Electron. Eng., Yonsei Univ., Seoul, South Korea
Abstract :
This paper proposes a burst synchronization method with a preamble for high data rate wireless asynchronous transfer mode (WATM) systems that use orthogonal frequency division multiplexing (OFDM). The preamble for synchronization is composed of four identical periods. Using this signal repetition, the correlation for symbol timing detection and frequency offset estimation are calculated. The proposed method improves the performance of synchronization by increasing the size of data used in the correlation operation. The analytic results show that by using the proposed method a gain of 1 dB in SIR (signal to interference ratio) is possible
Keywords :
OFDM modulation; asynchronous transfer mode; correlation methods; fading channels; frequency estimation; multipath channels; packet radio networks; radiofrequency interference; synchronisation; timing; OFDM based wireless ATM systems; SIR; WATM systems; correlation; data size; fast burst synchronization; frequency offset estimation; high data rate; multipath channel; multipath fading; orthogonal frequency division multiplexing; performance; preamble; signal repetition; signal to interference ratio; symbol timing detection; wireless asynchronous transfer mode; Asynchronous transfer mode; Communication networks; Data engineering; Fading; Frequency estimation; Frequency synchronization; Intersymbol interference; OFDM; System performance; Timing;
Conference_Titel :
Global Telecommunications Conference, 1999. GLOBECOM '99
Conference_Location :
Rio de Janeireo
Print_ISBN :
0-7803-5796-5
DOI :
10.1109/GLOCOM.1999.831697
