Title
PAPR reduction with harmony annealing research for OFDM systems
Abstract
Orthogonal frequency division multiplexing (OFDM) system has the problem of high peak-to-average power ratio (PAPR) due to its multiple sub-carriers. In general, partial transmitted sequence (PTS) technique is applied to obtain optimal PAPR reduction performance, but its exhausted search for the optimal phase factors must be accomplished accordingly. As the number of sub-blocks and phase factors increase, the computational complexity increases exponentially. In order to tackle this problem, a new method is proposed to find the sub-optimal phase factor using harmony annealing search. Comparison is performed between the proposed method and the various techniques developed previously. Simulation results show that the proposed algorithm can yield good tradeoff between PAPR reduction performance and computational complexity. © 2011 IEEE.
Year
DOI
Venue
2011
10.1109/ISCIT.2011.6092149
ISCIT
Keywords
Field
DocType
ofdm,optimization,papr,pts,exhaustive search,ofdm modulation,annealing,computational complexity,vectors
Phase factor,Mathematical optimization,Power ratio,Computer science,Algorithm,Real-time computing,Annealing (metallurgy),Orthogonal frequency-division multiplexing,Computational complexity theory
Conference
Volume
Issue
ISSN
null
null
null
Citations 
PageRank 
References 
0
0.34
8
Authors
4
Name
Order
Citations
PageRank
Jing Gao111.16
Jinkuan Wang200.34
Bin Wang31788246.68
Xin Song41515.82