Title :
Reduced complexity PTS and new phase sequences for SLM to reduce PAP of an OFDM signal
Author :
Jayalath, A.D.S. ; Tellambura, C. ; Wu, H.
Author_Institution :
Sch. of Comput. Sci. & Software Eng., Monash Univ., Clayton, Vic., Australia
Abstract :
This paper presents a simplified version of partial transmit sequences (PTS) and a new scheme for selected mapping sequences to reduce peak-to-average power ratio (PAP) of an OFDM signal. Simplification of PTS is achieved by having a set of partitions but optimizing phase values only for alternate partitions. This proves to be a promising solution to reduce complexity of PTS. It is also proposed to choose the selected mapping sequences are using Newman phase sequences. In this case, albeit with an increase of the complexity, very high PAR reduction can be achieved
Keywords :
OFDM modulation; computational complexity; fast Fourier transforms; inverse problems; sequences; signal sampling; spread spectrum communication; Newman phase sequences; OFDM signal; PAP reduction; SLM; broadband communications; complexity reduction; fast Fourier transform; mapping sequences; multipath propagation; orthogonal frequency division multiplexing; oversampled IFFT; partial transmit sequences; peak-to-average power ratio; phase values optimisation; reduced complexity PTS; Australia; Broadband communication; Computer science; OFDM; Partial transmit sequences; Peak to average power ratio; Signal mapping; Software engineering; Wireless LAN; Wireless communication;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851605
