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Article:Joint Estimation of Impairments for OFDM and MIMO OFDM Systems

by T. Shankar, A. Karthikeyan, Christopher Clement J
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International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 23 - Number 5
Year of Publication: 2011
Authors: T. Shankar, A. Karthikeyan, Christopher Clement J
10.5120/2884-3759

T. Shankar, A. Karthikeyan, Christopher Clement J . Article:Joint Estimation of Impairments for OFDM and MIMO OFDM Systems. International Journal of Computer Applications. 23, 5 ( June 2011), 17-21. DOI=10.5120/2884-3759

@article{ 10.5120/2884-3759,
author = { T. Shankar, A. Karthikeyan, Christopher Clement J },
title = { Article:Joint Estimation of Impairments for OFDM and MIMO OFDM Systems },
journal = { International Journal of Computer Applications },
issue_date = { June 2011 },
volume = { 23 },
number = { 5 },
month = { June },
year = { 2011 },
issn = { 0975-8887 },
pages = { 17-21 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume23/number5/2884-3759/ },
doi = { 10.5120/2884-3759 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T20:09:22.662596+05:30
%A T. Shankar
%A A. Karthikeyan
%A Christopher Clement J
%T Article:Joint Estimation of Impairments for OFDM and MIMO OFDM Systems
%J International Journal of Computer Applications
%@ 0975-8887
%V 23
%N 5
%P 17-21
%D 2011
%I Foundation of Computer Science (FCS), NY, USA
Abstract

Orthogonal Frequency Division Multiplexing (OFDM) is a multi–channel modulation technique that makes use of Frequency division multiplexing (FDM) being modulated by a low bit rate digital stream. The main reason of using OFDM is because here the symbol detection is easy and also to increase the robustness against frequency selective fading and narrow band interference. Certain parameter like CFO (carrier frequency offset),I/Q imbalance (inphase and quadrature phase imbalance) imbalance causes distortion in the received signal. Here comparison is made for the given parameters using different channels and a method is proposed for Multiple Input Multiple output (MIMO) OFDM system when symbol generated is not a integral multiple of number of transmitters used.

References
  1. Yuan –hwui chang and see-may phoong “Joint estimation of transmitter and receiver I/Q Imbalances, CFO, and Channel Response for OFDM system”.
  2. Yuan –hwui chang and see-may phoong “Joint estimation of I/Q imbalance,CFO and Channel response for MIMO OFDM system”
  3. Y.-H. Chung and S.-M. Phoong, Channel estimation in presence of transmitter and receiver I/Q mismatches in presence of OFDM system.
  4. G. Xing, M. Shen, and H. Lui,"Frequency offset and YQ imbalance compensation for direct-conversion receivers," IEEE Trans.
  5. P. H. Moose,''A technique for frequency division multiplexing offset correction;'IEEE Trans.
  6. T. M. Schmid! and D. C. Cox, "Robust frequency and timing synchronization for OFDM," IEEE Trans. Commun.,
  7. F. Horlin, A. Bourdoux, E. Lopez-Estraviz and L. V. der Perre, "Lowcomplexity EM-based joint acquisition of the carrier frequency offset and IQ imbalance,"IEEE Trans. Wireless Commun.
  8. P. Stoica and O. Besson, "Training sequence design for frequency offset and frequency-selective channel estimation," 19 10- 19 17, Nov. 2001.
  9. y'-H Chung, K.-D. Wu and S.-M. Phoong, "Joint estimation of I/Q imbalance, CFO and channel response for OFDM systems;'
  10. G.-T. Gil, I.-H. Sohn, J.-K. Park, and Y. H. Lee, "Joint ML estimation of carrier frequency offset, channel, YQ mismatch, and DC offset in communication receivers,"
  11. Q. Zou, A. Tarighat, K. Y. Kim and A. H. Sayeed, "OFDM channel estimation in the presence of frequency offset, IQ imbalance and phase noise,"
Index Terms

Computer Science
Information Sciences

Keywords

OFDM FDM CFO I/Q Imbalance MIMO OFDM

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