ZCZ Sequences-based Frequency Synchronization for Interleaved OFDMA Uplink

Huan Su, Jianhua Zhang, Ping Zhang
Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd (Volume:4 )
DOI: 10.1109/VETECS.2006.1683203
Publish Year: 2006

Abstract: In this paper, we propose a zero correlation zone (ZCZ) sequences-based carrier frequency offset estimation algorithm for interleaved OFDMA uplink. By introducing the effective carrier frequency offset (CFO) and designing an appropriate training sequence for each user, we propose a training sequence-based CFO estimation algorithm thus avoiding the computationally complex subspace-based method proposed by Cao & Tureli (2002). Zero correlation zone sequence set is used as training sequence to mitigate multipath inference and multiuser inference. Simulation results show that the proposed algorithm is effective in multi-path fading channel

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