26 search results - page 2 / 6 » Peak-to-Average Power Ratio Reduction in MIMO OFDM |
SIPS
2007
IEEE
14 years 1 days ago
2007
IEEE
Digital predistortion is a technique used to reduce the signal dynamic range in a multichannel system in order to improve power amplifier (PA) efficiency. These techniques have be...
VTC
2007
IEEE
14 years 1 days ago
2007
IEEE
—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...
VTC
2006
IEEE
13 years 11 months ago
2006
IEEE
—The OFDM signals have a problem of high peak-to-average power ratio (PAPR). Hence, a large transmit-power backoff or amplitude clipping is required. The amplitude clipping cause...
ISCAS
2007
IEEE
14 years 2 days ago
2007
IEEE
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...
VTC
2008
IEEE
14 years 4 days ago
2008
IEEE
—Orthogonal frequency division multiplexing (OFDM) is currently under intense research for broadband wireless transmission due to its robustness against multipath fading. However...