Title :
Reducing of Peak-to-Average Power Radio of OFDM System with Pseudorandom Sequence
Author :
Zhou Ke ; Zhang Li-jun
Author_Institution :
Coll. of Commun. & Inf. Eng., Nanjing Univ. of Posts & Telecommun., Nanjing
Abstract :
A new method for reduction peak-to-average power ratio (PAPR) in orthogonal frequency division multiplexing (OFDM) systems is proposed in this paper. The PAPR characteristics are analyzed. From the foundation of the analysis, a pseudorandom sequence matrix is adapted to reduce aperiodic auto-correlation of the transmitting sequence. Simulation results verify the improved performance of PAPR using this approach. The method is simple, low complexity and it is easier to combine the method with other PAPR reducing technique so as to further reduce the PAPR in OFDM system.
Keywords :
OFDM modulation; correlation methods; matrix algebra; random sequences; OFDM system; aperiodic autocorrelation reduction; orthogonal frequency division multiplexing; pseudorandom sequence matrix; Amplitude modulation; Autocorrelation; Distortion; Educational institutions; Error probability; Fading; OFDM modulation; Peak to average power ratio; Power engineering and energy; Random sequences;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.3023
