Title :
Enhanced Uplink Frequency Synchronization Algorithm for OFDMA Systems in a Multi-Path Fading Environment
Author :
Khalwati, Merwise ; Soleymani, M. Reza
Author_Institution :
Concordia Univ., Montreal, Que.
Abstract :
OFDMA uplink synchronization is an important and challenging task, as one OFDM symbol carries data for many users and the correction of one user´s time and frequency offsets cannot be accomplished easily at the base station receiver. The correction to one user would misalign other initially aligned users. We present a novel frequency synchronization algorithm that is demonstrated as an enhanced scheme for in the uplink of multiuser OFDM systems in a multi-path environment
Keywords :
OFDM modulation; fading channels; frequency division multiple access; multipath channels; radio links; synchronisation; OFDMA systems; base station receiver; multipath fading; uplink frequency synchronization algorithm; Base stations; Fading; Filters; Frequency estimation; Frequency synchronization; GSM; Intersymbol interference; OFDM; Oscillators; Time division multiple access; ICI; OFDMA; multi-path fading; orthogonality; uplink frequency synchronization;
Conference_Titel :
Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on
Conference_Location :
Ottawa, Ont.
Print_ISBN :
1-4244-0038-4
Electronic_ISBN :
1-4244-0038-4
DOI :
10.1109/CCECE.2006.277621
