TY - JOUR
T1 - User separation and frequency-time synchronization for the uplink of interleaved OFDMA
AU - Cao, Zhongren
AU - Tureli, Ufuk
AU - Yao, Yu Dong
PY - 2002
Y1 - 2002
N2 - This paper exploits the signal algebraic structure on the uplink of OFDMA system adopting interleaved carrier assignment scheme for synchronization and user separation. We first propose a subspace based method to estimate multiple user CFO deterministically using only one OFDMA block. Next, we derive a MMSE filter which can extract the ideal received signal waveform of all users individually to implement user separation and frequency synchronization at the same time. Time synchronization is carried out on single user's signal The performance of the proposed algorithms is evaluated by simulations.
AB - This paper exploits the signal algebraic structure on the uplink of OFDMA system adopting interleaved carrier assignment scheme for synchronization and user separation. We first propose a subspace based method to estimate multiple user CFO deterministically using only one OFDMA block. Next, we derive a MMSE filter which can extract the ideal received signal waveform of all users individually to implement user separation and frequency synchronization at the same time. Time synchronization is carried out on single user's signal The performance of the proposed algorithms is evaluated by simulations.
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M3 - Conference article
AN - SCOPUS:0037629415
SN - 1058-6393
VL - 2
SP - 1842
EP - 1846
JO - Conference Record - Asilomar Conference on Signals, Systems and Computers
JF - Conference Record - Asilomar Conference on Signals, Systems and Computers
T2 - The Thirty-Sixth Asilomar Conference on Signals Systems and Computers
Y2 - 3 November 2002 through 6 November 2002
ER -