Inter-carrier interference in MIMO-OFDM. Stamoulis, A.; Diggavi, S N.; and N. Al-Dhahir, undefined IEEE Transactions on Signal Processing, 50(10):2451–2464, October, 2002.
abstract   bibtex   
This paper studies the impact of time-variation within a transmission block on multiple-input multiple output (MIMO) OFDM, which is the chosen modulation strategy of 4G wireless systems. We demonstrate how time-variation can lead to inter-carrier interference, and give algorithms that can mitigate its effects. A central challenge is how to estimate the channel, when it varies within a block. We devise pilot tone placement strategies that enable better channel estimation. We show that in time-varying channels it may be better to group pilot tones together into clumps equispaced onto the FFT grid; this placement technique is in contrast to the common wisdom for time-invariant channels.
@Article{SDAj02,
AUTHOR =  {A. Stamoulis and S N. Diggavi and N. Al-Dhahir,},
title =  {Inter-carrier interference in MIMO-OFDM},
journal =  { IEEE Transactions on Signal Processing},
YEAR = {2002},
VOLUME = {50},
label = {sda_j02},
number = {10},
PAGES = {2451--2464},
MONTH = {October},
file = {:papers:ps:mimo_ofdm.pdf},
abstract = {This paper studies the impact of time-variation within a transmission block
on multiple-input multiple output (MIMO) OFDM, which is the chosen modulation strategy
of 4G wireless systems. We demonstrate how time-variation can lead to inter-carrier
interference, and give algorithms that can mitigate its effects. A central challenge is how to
estimate the channel, when it varies within a block. We devise pilot tone placement strategies that enable better channel estimation. We show that in time-varying channels it
may be better to group pilot tones together into clumps equispaced onto the FFT grid; this placement technique is in contrast to the common wisdom for time-invariant channels.},
tags = {journal,MIMOofdm,ICIofdm,SP,STWC},
note = {},
TYPE = {article}
}
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