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» On Reduction of Lagrange Systems
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82
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PIMRC
2008
IEEE
15 years 4 months ago
Optimal constellation distortion for PAR reduction in OFDM systems
Abstract—The high peak-to-average-power ratio (PAR) of Orthogonal Frequency Division Multiplexing (OFDM) transmission systems significantly reduces the power efficiency or perf...
Moshe Malkin, Brian S. Krongold, John M. Cioffi
90
Voted
VTC
2008
IEEE
102views Communications» more  VTC 2008»
15 years 4 months ago
CQI Feedback Reduction Based on Spatial Correlation in OFDMA System
— In OFDMA systems, channel quality information (CQI) feedback is used to determine the modulation and coding level of a mobile station (MS). When the MS uses diversity, it trans...
Woongsup Lee, Dong-Ho Cho
VTC
2007
IEEE
15 years 4 months ago
A Tail-Biting Turbo Coded OFDM System for PAPR and BER Reduction
— In a turbo coded orthogonal frequency-division multiplexing (TCOFDM) system, low peak-to-average power ratio (PAPR) can be achieved by selective-mapping (SLM). In this paper, w...
Yung-Chih Tsai, Yeong-Luh Ueng
ACII
2005
Springer
15 years 3 months ago
Pronunciation Learning and Foreign Accent Reduction by an Audiovisual Feedback System
Abstract. Global integration and migration force people to learn additional languages. With respect to major languages, the acquisition is already initiated at primary school but a...
Oliver Jokisch, Uwe Koloska, Diane Hirschfeld, R&u...
TSP
2008
114views more  TSP 2008»
14 years 9 months ago
Clipping-Noise Guided Sign-Selection for PAR Reduction in OFDM Systems
The peak-to-average power ratio (PAR) of orthogonal frequency division multiplexing (OFDM) systems can be reduced by using an optimal set of subcarrier signs. However, this sign se...
Luqing Wang, Chintha Tellambura