Modified deterministic structure based carrier frequency offset estimation for interleaved OFDMA uplink

A modified deterministic structure based carrier frequency offset (CFO) estimation algorithm is presented for the interleaved orthogonal frequency division multiple access (OFDMA) uplink transmission. The presented algorithm combines the conventional deterministic structure algorithm with multiple a...

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Bibliographic Details
Main Authors: Hsin-Yi Huang, Shyue-Win Wei
Format: Conference Proceeding
Language:English
Subjects:
carrier frequency offset
Content addressable storage
deterministic structure based estimation
Downlink
Fading
Frequency conversion
Frequency diversity
Frequency estimation
Frequency synchronization
interleaved subcarriers allocation
Iterative algorithms
multi-path fading channel
Multiple access interference
OFDM
OFDMA
uplink
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Description
Summary:A modified deterministic structure based carrier frequency offset (CFO) estimation algorithm is presented for the interleaved orthogonal frequency division multiple access (OFDMA) uplink transmission. The presented algorithm combines the conventional deterministic structure algorithm with multiple access interference (MAI) cancellation method so that the estimation performance can be significantly improved. The presented iterative CFO estimation algorithm can work well on both AWGN and multi-path fading channels, especially when the system is fully loaded and the effective CFOs are very close to each other.
ISSN:2163-0771
DOI:10.1109/APCC.2009.5375612