Sciweavers

GLOBECOM
2006
IEEE
13 years 11 months ago
On Lowering the Error Floor of High Order Turbo BICM Schemes Over Fading Channels
— A new approach for the association of the well known turbo codes to modulation schemes is presented. This method is designed for flat fading channels. It presents the advantage...
Charbel Abdel Nour, Catherine Douillard
GLOBECOM
2006
IEEE
13 years 11 months ago
Effect of Channel Estimation Errors on Diversity-Multiplexing Tradeoff in Multiple Access Channels
Abstract— In this paper, multiple access channels are considered in which user data rates increase with the signal-to-noise ratio (SNR). To account for channel estimation errors,...
Ravi Narasimhan
GLOBECOM
2006
IEEE
13 years 11 months ago
Two Novel Iterative Joint Frequency-Offset and Channel Estimation Methods for OFDMA Uplink
—We address joint estimation of frequency offsets and channel responses in OFDMA uplink. A cyclically equal-spaced, equal-energy interleaved pilot preamble is proposed by which t...
Xiaoyu Fu, Hlaing Minn, Cyrus D. Cantrell
GLOBECOM
2006
IEEE
13 years 11 months ago
High-rate, Double-Symbol-Decodable STBCs from Clifford Algebras
— For the number of transmit antennas N = 2a the maximum rate (in complex symbols per channel use) of all the Quasi-Orthogonal Designs (QODs) reported in the literature is a 2aâˆ...
Sanjay Karmakar, B. Sundar Rajan
GLOBECOM
2006
IEEE
13 years 11 months ago
Effect of Feedback Delay on Multi-Antenna Limited Feedback for Temporally-Correlated Channels
— A novel method based on Markov chain theory is proposed for analyzing the effect of feedback delay on a transmit beamforming system with limited feedback. Using this method, th...
Kaibin Huang, Bishwarup Mondal, Robert W. Heath Jr...
GLOBECOM
2006
IEEE
13 years 11 months ago
Optimized Transmission for Upstream Vectored DSL Systems Using Zero-Forcing Generalized Decision-Feedback Equalizers
— In upstream vectored DSL transmission, the far-end crosstalk (FEXT) can be completely cancelled by using zeroforcing generalized decision-feedback equalizers (ZF-GDFE). When th...
Chiang-Yu Chen, Kibeom Seong, Rui Zhang, John M. C...
GLOBECOM
2006
IEEE
13 years 11 months ago
A Broadcasting Relay for Orthogonal Multiuser Channels
— This paper introduces broadcasting relay nodes for orthogonal multiuser channels. The underlying idea is that a single relay node is shared by multiple source-destination pairs...
Ali Tajer, Aria Nosratinia
GLOBECOM
2006
IEEE
13 years 11 months ago
Evaluation of Bit Error Rate for Packet Combining with Constellation Rearrangement
Mustapha Benjillali, Leszek Szczecinski, Sonia A&i...
GLOBECOM
2006
IEEE
13 years 11 months ago
Alamouti Space-Time Coded OFDM Systems in Time- and Frequency-Selective Channels
Abstract— We propose low-complexity equalizers for Alamouti space-time coded orthogonal frequency-division multiplexing (OFDM) systems in time- and frequency-selective channels, ...
Kun Fang, Geert Leus, Luca Rugini
GLOBECOM
2006
IEEE
13 years 11 months ago
Collision Model for Bit Error Rate analysis of Time Hopping Impulse Radio in Multipath Nakagami-m Channels
— In presence of multiple access interference, the performance of impulse radio system is affected by collisions with other users. In this paper we evaluate the bit error probabi...
L. Reggiani, Umberto Spagnolini