Title :
A low-PAPR OFDM algorithm with the guaranty for data security
Author :
Jian-e, Dong ; Lin, Zhao Tong ; Zhong Li Hui
Author_Institution :
Dept. of Comput. & Inf. Sci., Southwest Forestry Univ., Kunming, China
Abstract :
In order to overcome the high PAPR of OFDM (Orthogonal Frequency Division Multiplexing) signal, a construction method of multi-phase orthogonal matrix family is proposed and its nature is analyzed in this paper, at the same time, two kinds of low-PAPR OFDM algorithm for guaranting the data security are designed by using multi-phase orthogonal matrix. Theoretical analysis and simulation results show that the matrix number of orthogonal matrix family is N!×NN. Through taking any matrix as a key and multiplying the OFDM input signals, the PAPR can be reduced without introducing error rate, and the data security is guaranteed at the same time.
Keywords :
OFDM modulation; cryptography; matrix algebra; OFDM input signals; data security; low-PAPR OFDM algorithm; multiphase orthogonal matrix family; orthogonal frequency division multiplexing; Automation; Conferences; Control systems; Intelligent systems; OFDM; PAPR; multi-phase orthogonal matrix; pre-coding;
Conference_Titel :
Cyber Technology in Automation, Control, and Intelligent Systems (CYBER), 2011 IEEE International Conference on
Conference_Location :
Kunming
Print_ISBN :
978-1-61284-910-2
DOI :
10.1109/CYBER.2011.6011762
