Sciweavers

ICSAP
2010
14 years 3 months ago
The Effect of Subcarrier-Based Channel Estimation on the BER Bound of Turbo Coded OFDM/SDMA System
—In this paper, we study the performance of the channel estimation in a Turbo coded, orthogonal frequency division multiplexing (OFDM) with multiple antennas at the receiver. We ...
Y. Taghinia, Gholamreza Dadashzadeh, Esrafil Jedar...
ICASSP
2009
IEEE
14 years 3 months ago
Narrowband interference mitigation in BICM OFDM systems
Orthogonal frequency division multiplexing (OFDM) is noted for its resistance to narrowband interference when equipped with forward error correction. This technique along with era...
Arun Batra, James R. Zeidler
GLOBECOM
2007
IEEE
14 years 3 months ago
Time-Domain Transmit Beamforming for MIMO-OFDM Systems
Transmit beamforming (BF) and receive combining are simple and popular methods for performance enhancement in multiple
Yang-wen Liang, Robert Schober, Wolfgang H. Gersta...
ISCAS
2005
IEEE
190views Hardware» more  ISCAS 2005»
14 years 5 months ago
Using CLNS for FFTs in OFDM demodulation of UWB receivers
— The Complex Logarithmic Number System (CLNS) uses log/polar complex representation. We propose CLNS for the 128-point Fast Fourier Transform (FFT) in Orthogonal Frequency Divis...
Panagiotis D. Vouzis, Mark G. Arnold, Vassilis Pal...
IWCMC
2006
ACM
14 years 5 months ago
Uplink capacity comparison of non-perfect frequency synchronized cellular OFDM systems
Orthogonal frequency division multiplexing (OFDM) is very sensitive to frequency offsets which result in considerable interference. Performance of the system will be exacerbated ...
Shameem Kabir Chaudhury, Hrishikesh Venkataraman, ...
DAC
2006
ACM
14 years 5 months ago
Energy-scalable OFDM transmitter design and control
Orthogonal Frequency Division Multiplexing (OFDM) is the modulation of choice for broadband wireless communications. Unfortunately, it comes at the cost of a very low energy effic...
Björn Debaillie, Bruno Bougard, Gregory Lenoi...
WIOPT
2006
IEEE
14 years 5 months ago
Connection-level QoS provisioning in multiple transmission technology-based OFDM system
A state-of-the-art orthogonal frequency division multiplexing (OFDM)-based access system, such as the DiffSeg system [1][2], uses a different set of transmission technologies, e.g...
Youngkyu Choi, Sunghyun Choi, Sung-Pil Hong
VTC
2006
IEEE
154views Communications» more  VTC 2006»
14 years 5 months ago
Adaptive Modulation and Coding for Bit Interleaved Coded Multiple Beamforming
— Bit interleaved coded multiple beamforming (BICMB) was previously designed to achieve full spatial multiplexing of min(N, M) and full spatial diversity of NM for N transmit and...
Ersin Sengul, Enis Akay, Ender Ayanoglu
VTC
2006
IEEE
142views Communications» more  VTC 2006»
14 years 5 months ago
Adaptive Bit-Interleaved Coded OFDM over Time-Varying Channels
When adapting the transmitter to the channel state information (CSI), improved transmission is possible compared to the open loop system where no CSI is provided at the transmitte...
Jin Soo Choi, Chang-Kyung Sung, Sung Hyun Moon, In...
VTC
2006
IEEE
113views Communications» more  VTC 2006»
14 years 5 months ago
On the Calculation of OFDM Error Performance with Phase Noise in AWGN and Fading Channels
Oscillator phase noise (PN) in orthogonal frequency division multiplexing (OFDM) systems can cause severe performance degradation. In contrary to the assumptions made previously, r...
Himal A. Suraweera, Xiaolin Zhou, Jean Armstrong