A complex gradient algorithm is comprised of a p-waveform generator(401), a peak detector(403), a position circulation shifter(405), a phase rotator(407), a scaler(409), a complex adder(411), a PAPR(Peak-To-Average Power Ratio) calculator(413), and a controller(415). The p-waveform...
Because the OFDM transmit signal is the sum of a large number of subcarriers, it may have a high peak-to-average power ratio (PAPR). In the transmit signal, peaks occur when the vectors in the frequency-domain vector set are combined through the IFFT. Each frequency-domain vector ...
PURPOSE: A peak-to-average power ratio reduction method using peak windowing and an apparatus thereof are provided to minimize the influence of BER(Bit Error Rate) and ACLR(Adjacent Channel Leakage Ratio) performance by reducing in-band distortion and out-of-band radiation due to clipping.;...
Apparatus and method for reducing peak-to-average power ratio in a broadband wireless communication systemAn apparatus and method for PAPR reduction in a wireless communication system are provided. In the PAPR reducing apparatus, a first calculator calculates an ISF for each sample of baseband sample...
An apparatus is provided for reducing a peak-to-average power ratio (PAPR) in a wireless communication system having multiple transmit antennas. A symbol generator generates symbols to be transmitted via the multiple transmit antennas, and a PAPR calculator calculates a PAPR value for each symbol....
Apparatus and method for reducing peak-to-average power ratio in a broadband wireless communication systemAn apparatus and method for PAPR reduction in a wireless communication system are provided. In the PAPR reducing apparatus, a first calculator calculates an ISF for each sample of baseband sample...
Apparatus and method for reducing peak-to-average power ratio in a broadband wireless communication systemAn apparatus and method for PAPR reduction in a wireless communication system are provided. In the PAPR reducing apparatus, a first calculator calculates an ISF for each sample of baseband sample...
An apparatus is provided for reducing a peak-to-average power ratio (PAPR) in a wireless communication system having multiple transmit antennas. A symbol generator generates symbols to be transmitted via the multiple transmit antennas, and a PAPR calculator calculates a PAPR value for each symbol....
Apparatus and method for reducing peak-to-average power ratio in a broadband wireless communication systemAn apparatus and method for PAPR reduction in a wireless communication system are provided. In the PAPR reducing apparatus, a first calculator calculates an ISF for each sample of baseband sample...
A method and apparatus for reducing a Peak to Average Power Ratio (PAPR) using peak windowing is provided. In the apparatus, an absolute value calculator calculates an absolute value of an input signal, a subtractor subtracts a predetermined clipping threshold level from the absolute value, a ...