Title :
Ranging signal design and its detection for OFDMA systems
Author :
Lin, Kuhn Chang ; Su, Yu.T.
Author_Institution :
Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu
Abstract :
A single-symbol based initial ranging signal structure and the associated signal detection and timing synchronization methods for OFDMA systems are presented. The proposed structure makes it feasible and flexible for a receiver to detect single and multiple ranging codes and estimate the corresponding timing offsets. Our approach offers improved performance and enhanced robustness against multi-user interference and multi-path fading. Numerical results verify the effectiveness of the proposed method and its advantages over existing alternatives.
Keywords :
OFDM modulation; multipath channels; multiuser detection; radiofrequency interference; signal detection; synchronisation; OFDMA systems; associated signal detection; initial ranging signal structure; multi-path fading; multi-user interference; Design engineering; Fading; Frequency domain analysis; Interference; Niobium; OFDM; Propagation delay; Robustness; Signal design; Timing; MUSIC; OFDMA; multi-user ranging code detection; ranging process; timing estimation;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-2353-8
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2009.4960155
