Title :
PAPR reduction in 16-QAM OFDM signals by using dynamic constellation shaping algorithm
Author_Institution :
Elektrotehnicki fakultet u Beogradu, Univ. u Beogradu, Belgrade, Serbia
Abstract :
In this paper performances of algorithm for improvement of PAPR parameter of 16-QAM OFDM signals were analyzed. By implementation of algorithm constellation diagram of OFDM signal is dynamically changing, and it does not require transmitting information about it to the receiver. Decision metric of algorithm is based on simple mathematical tool what improves efficiency. Computer simulations in MATLAB confirmed success in reduction of PAPR parameter.
Keywords :
OFDM modulation; decision theory; quadrature amplitude modulation; radio receivers; MATLAB; PAPR parameter; PAPR reduction; QAM OFDM signals; algorithm constellation diagram; decision metric; dynamic constellation shaping algorithm; orthogonal frequency division multiplexing; peak-to-average power ratio; quadrature amplitude modulation; Bit error rate; MATLAB; Peak to average power ratio; Quadrature amplitude modulation; Radio frequency; Signal to noise ratio;
Conference_Titel :
Telecommunications Forum Telfor (TELFOR), 2014 22nd
Conference_Location :
Belgrade
Print_ISBN :
978-1-4799-6190-0
DOI :
10.1109/TELFOR.2014.7034413
