Title :
PAPR reduction by envelope stabilization using partial response signaling in OFDM systems
Author :
Vadde, Venkatesh
Author_Institution :
Nokia Res. Center, Irving, TX, USA
Abstract :
A technique is proposed to significantly reduce the peak to average power ratio (PAPR) for an OFDM system by stabilizing the signal envelope. By using partial response (PR) signaling to spread each sub-symbol over multiple subcarriers, we first compress the signal in time. The signal is then rearranged such that it is possible to stabilize the envelope, improving the PAPR by up to 5 dB without using excessive time-bandwidth resources. We quantify the improvement in PAPR and system performance in additive white Gaussian noise
Keywords :
AWGN; OFDM modulation; data compression; stability; telecommunication signalling; AWGN; OFDM systems; PAPR reduction; additive white Gaussian noise; orthogonal frequency division multiplexing; partial response signaling; peak to average power ratio; signal compression; signal envelope; subcarriers; Bit error rate; Convolution; Gaussian noise; OFDM modulation; Partial response signaling; Peak to average power ratio; Performance analysis; Polynomials; System performance; Time domain analysis;
Conference_Titel :
Radio and Wireless Conference, 2001. RAWCON 2001. IEEE
Conference_Location :
Waltham, MA
Print_ISBN :
0-7803-7189-5
DOI :
10.1109/RAWCON.2001.947607
