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VTC
2007
IEEE
154views Communications» more  VTC 2007»
13 years 10 months ago
An Improved Peak-to-Average Power Ratio Estimation Scheme for OFDM Systems
—To approximate the exact peaks of continuous-time orthogonal frequency division multiplexing (OFDM) signals, four times oversampling is usually employed for discrete-time OFDM s...
Chin-Liang Wang, Sheng-Ju Ku, Chun-Ju Yang
CORR
2006
Springer
127views Education» more  CORR 2006»
13 years 4 months ago
On the Peak-to-Mean Envelope Power Ratio of Phase-Shifted Binary Codes
The peak-to-mean envelope power ratio (PMEPR) of a code employed in orthogonal frequencydivision multiplexing (OFDM) systems can be reduced by permuting its coordinates and by rot...
Kai-Uwe Schmidt
TWC
2010
12 years 11 months ago
A Reduced-Complexity PTS-Based PAPR Reduction Scheme for OFDM Systems
In this paper, a reduced-complexity partial transmit sequences (PTS) scheme is proposed to resolve the intrinsic high peak-to-average power ratio (PAPR) problem of orthogonal frequ...
Sheng-Ju Ku, Chin-Liang Wang, Chiuan-Hsu Chen
TSP
2008
114views more  TSP 2008»
13 years 4 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
ISCAS
2007
IEEE
178views Hardware» more  ISCAS 2007»
13 years 10 months ago
On the Joint Compensation of IQ Imbalances and Phase Noise in MIMO-OFDM Systems
Abstract— OFDM systems are susceptible to receiver impairments such as IQ imbalance and phase noise. These impairments can severely degrade the achievable effective signalto-nois...
Qiyue Zou, Alireza Tarighat, Ali H. Sayed