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GLOBECOM
2006
IEEE
13 years 11 months ago
Two Novel Iterative Joint Frequency-Offset and Channel Estimation Methods for OFDMA Uplink
—We address joint estimation of frequency offsets and channel responses in OFDMA uplink. A cyclically equal-spaced, equal-energy interleaved pilot preamble is proposed by which t...
Xiaoyu Fu, Hlaing Minn, Cyrus D. Cantrell
ICASSP
2008
IEEE
13 years 11 months ago
Compensation of RF impairments in MIMO OFDM systems
In this paper we propose a generally applicable frequency domain equalization and radio frequency (RF) impairment compensation technique for orthogonal frequency division multiple...
Deepaknath Tandur, Marc Moonen
TWC
2008
88views more  TWC 2008»
13 years 4 months ago
Turbo Estimation and Equalization for Asynchronous Uplink MC-CDMA
In this contribution, we propose a new code-aided synchronization and channel estimation algorithm for uplink MC-CDMA. The space alternating generalized expectationmaximization (SA...
Mamoun Guenach, Mohamed Marey, Henk Wymeersch, Hei...
GLOBECOM
2007
IEEE
13 years 11 months ago
MIMO-OFDM Channel Estimation in Presence of Carrier Frequency Offsets
— Optimal pilot design and placement for channel estimation in Multiple-input Multiple-output (MIMO) Orthogonal Frequency-Division Multiplexing (OFDM) systems in the presence of ...
Zhongshan Zhang, Wei Zhang, Chintha Tellambura
IWCMC
2006
ACM
13 years 11 months ago
Uplink capacity comparison of non-perfect frequency synchronized cellular OFDM systems
Orthogonal frequency division multiplexing (OFDM) is very sensitive to frequency offsets which result in considerable interference. Performance of the system will be exacerbated ...
Shameem Kabir Chaudhury, Hrishikesh Venkataraman, ...