56 search results - page 5 / 12 » Pilot optimization for time-delay and channel estimation in ... |
VTC
2006
IEEE
14 years 1 months ago
2006
IEEE
In this paper, two channel estimation schemes for OFDM systems are investigated in a time-variant channel. The orthogonality of the subcarriers is destroyed in a time-variant chann...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
—In this paper, we present an iterative algorithm for channel complex gains estimation with inter-sub-carrierinterference (ICI) reduction in orthogonal-frequency-divisionmultiple...
VTC
2010
IEEE
13 years 5 months ago
2010
IEEE
—We discuss a novel pilot design for multi-user channel estimation in the OFDM uplink with localized block-type pilot placement. Due to this placement, multiple users’ channels...
TSP
2008
13 years 7 months ago
2008
For orthogonal space-time block coded orthogonal frequency division multiplexing (OSTBC-OFDM) systems, many of the existing blind detection and channel estimation methods rely on t...
TWC
2008
13 years 7 months ago
2008
Carrier frequency synchronization is critical to the quality of signal reception in OFDM systems. This paper presents an approximate maximum-likelihood (ML) carrier frequency offse...