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ICC
2007
IEEE
119views Communications» more  ICC 2007»
10 years 4 months ago
Inter-Symbol Interference Mitigation in High-Data-Rate UWB Systems
— The design of ultra-wideband (UWB) impulse radio receivers has to cope with complex signal propagation environments with dense multipath fading, which complicate channel estima...
Vincenzo Lottici, Lin Wu, Zhi Tian
ICC
2007
IEEE
136views Communications» more  ICC 2007»
10 years 4 months ago
Sphere Decoder for a MIMO Multi-User MC-CDMA Uplink in Time-Varying Channels
— We focus on iterative detection for the uplink of a multi-carrier (MC) code division multiple access (CDMA) system based on orthogonal frequency division multiplexing (OFDM). T...
Charlotte Dumard, Thomas Zemen
ICC
2007
IEEE
121views Communications» more  ICC 2007»
10 years 4 months ago
Low Complexity Adaptive Turbo Frequency-Domain Channel Estimation for Single-Carrier Multi-User Detection with Unknown Co-Channe
—Adaptive Turbo frequency-domain channel estimation is investigated for single-carrier (SC) multi-user detection in the presence of unknown co-channel interference (CCI). We prop...
Ye Wu, Xu Zhu, Asoke K. Nandi
ICC
2007
IEEE
153views Communications» more  ICC 2007»
10 years 4 months ago
A Novel Blind Channel Estimation for CP-Based MIMO OFDM Systems
— In this paper, we consider the problem of blind channel estimation for multi-input, multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems via second ord...
Feifei Gao, Wenyuan Wu, Yonghong Zeng, Arumugam Na...
GLOBECOM
2007
IEEE
10 years 4 months ago
Iterative Channel Estimation for IDMA Systems in Time-Varying Channels
— In this paper, we develop low-complexity iterative channel estimation techniques for emerging IDMA systems. The channel estimators make use of pilots as well as soft decoded da...
Xiangyun Zhou, Zhenning Shi, Mark C. Reed
GLOBECOM
2007
IEEE
10 years 4 months ago
Uplink-Downlink Duality in Normalized MSE or SINR Under Imperfect Channel Knowledge
Abstract— Duality between the multi-antenna multi-user uplink and the downlink has been discovered in terms of sum rate, capacity region, signal-to-interference-plus-noise-ratio ...
Minhua Ding, Steven D. Blostein
VTC
2008
IEEE
146views Communications» more  VTC 2008»
10 years 4 months ago
A Frequency-Domain Correlation Matrix Estimation Algorithm for MIMO-OFDM Channel Estimation
— The second-order statistics of a time-domain signal are very often used in blind and semi-blind channel estimation. Considering that the received signal in MIMO-OFDM systems mi...
Feng Wan, Wei-Ping Zhu, M. N. S. Swamy
VTC
2008
IEEE
114views Communications» more  VTC 2008»
10 years 4 months ago
Code Aided Joint Frame Synchronization and Channel Estimation for Uplink MC-CDMA in the Presence of Narrowband Interference
Spectrum-overlay scenarios for wide-band multi-carrier (MC) systems bring new technical challenges along that must be considered during the system design. In such scenarios, the r...
Mohamed Marey, Mamoun Guenach, Heidi Steendam
VTC
2008
IEEE
10 years 4 months ago
DS-CDMA MMSE Turbo Equalization Using 2-Step Maximum Likelihood Channel Estimation
—Frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion and frequencydomain inter-chip interference (ICI) cancellation can be incorporated in...
Yohei Kojima, Kazuaki Takeda, Fumiyuki Adachi
VTC
2008
IEEE
10 years 4 months ago
A Bit-Mapping Strategy for Joint Iterative Channel Estimation and Turbo-Decoding
Abstract— In this paper, we investigate Turbo-coded transmission over a temporally correlated flat Rayleigh fading channel. Conventionally, channel estimation is performed prior...
Susanne Godtmann, Helge Lüders, Gerd Ascheid,...
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