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ICUMT
2009
9 years 7 months ago
Performance evaluations of channel estimations in IEEE 802.11p environments
To solve the defect in IEEE 802.11p standard that coherence bandwidth is insufficient to estimate the channel state in rich scattering environment, hance a time domain channel esti...
Chi-Sheng Lin, Che-Kang Sun, Jia-Chin Lin, Bo-Chua...
ICC
2009
IEEE
210views Communications» more  ICC 2009»
9 years 7 months ago
Novel Preamble-Based Channel Estimation for OFDM/OQAM Systems
OFDM/OQAM has been considered as an attractive alternative to classic OFDM with cyclic prefix (CP) over doubly dispersive channels. By utilising well designed pulse shapes and remo...
Jinfeng Du, Svante Signell
PIMRC
2010
IEEE
9 years 7 months ago
Iterative SIC receiver scheme for non-orthogonally superimposed signals on top of OFDMA
In this paper, we propose an iterative SIC receiver architecture with pilot- and data-based channel estimation for efficient decoding of non-orthogonal superimposed signals. The no...
Andreas Ruegg, Alberto Tarable
GLOBECOM
2010
IEEE
9 years 7 months ago
Differential Cooperative Communications with Space-Time Network Coding
Abstract--In multinode cooperative communications, simultaneous transmissions from two or more nodes are challenging due to its asynchronous nature. In addition, channel estimation...
Zhenzhen Gao, Hung-Quoc Lai, K. J. Ray Liu
VTC
2010
IEEE
146views Communications» more  VTC 2010»
9 years 7 months ago
Multi-User Channel Estimation for Interference Mitigation in the LTE-Advanced Uplink
—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...
Zhijun Rong, Gerhard Fettweis
TSP
2008
132views more  TSP 2008»
9 years 7 months ago
On Doubly Selective Channel Estimation Using Superimposed Training and Discrete Prolate Spheroidal Sequences
Abstract--Channel estimation and data detection for frequencyselective time-varying channels are considered using superimposed training. We employ a discrete prolate spheroidal bas...
Shuangchi He, Jitendra K. Tugnait
TWC
2008
150views more  TWC 2008»
9 years 9 months ago
Improved iterative detection and achieved throughputs of OFDM systems under imperfect channel estimation
Abstract--Assuming imperfect channel estimation, we propose an improved detector for orthogonal frequency-division multiplexing (OFDM) systems over a frequency-selective fading cha...
Seyed Mohammad Sajad Sadough, Pierre Duhamel
TWC
2008
131views more  TWC 2008»
9 years 9 months ago
On channel estimation and optimal training design for amplify and forward relay networks
In this paper, we provide a complete study on the training based channel estimation issues for relay networks that employ the amplify-and-forward (AF) transmission scheme. We first...
Feifei Gao, Tao Cui, Arumugam Nallanathan
TWC
2008
104views more  TWC 2008»
9 years 9 months ago
Multiple symbol differential detection for UWB communications
In ultra-wideband (UWB) communications, the typical signal propagation through dense multipath fading offers potentially very large multipath diversity, but at the same time compl...
Vincenzo Lottici, Zhi Tian
TWC
2008
103views more  TWC 2008»
9 years 9 months ago
PAR-Constrained Training Signal Designs for MIMO OFDM Channel Estimation in the Presence of Frequency Offsets
Training signals for OFDM channel estimation should possess low PAR to avoid nonlinear distortions at the transmit amplifier and at the same time they should be robust against freq...
Hlaing Minn, Yinghui Li, Naofal Al-Dhahir
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