Title :
A new PTS technique to reduce the peak to average power ration of OFDM system
Author :
Jing, Gao ; Jinkuan, Wang ; Zhibin, Xie
Author_Institution :
Sch. of Inf. Sci. & Eng., Northeastern Univ., Shenyang
Abstract :
Orthogonal frequency division multiplexing (OFDM) is an attractive technology for high speed data transmission wireless communication. However, OFDM has a large peak-to-average power ratio (PAPR), which means that the high requirements for precision of the linear amplifiers, and thus result to high system cost. To solve this problem, a novel partial transmit sequence (PTS) technique based on improved simulated annealing optimization (ISA-PTS) is proposed in this paper. The improved SA optimization approach is applied to search the optimal combination of phase factors, which can achieve the OFDM signals with low PAPR and reduce the computational complexity significantly. Simulations show that ISA-PTS technique provides a good compromise between PAPR reduction performance and the computational complexity.
Keywords :
OFDM modulation; amplifiers; computational complexity; radiocommunication; simulated annealing; OFDM signals; OFDM system; PTS technique; computational complexity; high speed data transmission wireless communication; linear amplifiers; orthogonal frequency division multiplexing; partial transmit sequence; peak-to-average power ration; phase factors; simulated annealing optimization; Computational complexity; Computational modeling; Costs; Data communication; High power amplifiers; OFDM; Partial transmit sequences; Peak to average power ratio; Simulated annealing; Wireless communication;
Conference_Titel :
Microwave and Millimeter Wave Technology, 2008. ICMMT 2008. International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-1879-4
Electronic_ISBN :
978-1-4244-1880-0
DOI :
10.1109/ICMMT.2008.4540871
