Title :
Implementation of Carrier Interferometry OFDM by Using Pulse Shaping Technique in Frequency Domain
Author :
Xu, Fang ; Xu, Ru ; Sun, Haixin
Author_Institution :
Key Lab. of Underwater Acoust. Commun. & Marine Inf. Technol., Xiamen Univ., Xiamen
Abstract :
This paper presents a novel design of carrier interferometry (CI) spreading codes by Using inverse fast Fourier transform (IFFT) instead of linear transform matrix. Pulse shaping method in frequency domain is used to generate different carrier interferometry orthogonal frequency division multiplexing (CI/OFDM) signals. Peak-to-average power ratio (PAPR) performance has been compared among OFDM, original CI/OFDM and our proposal. Simulation results show that our proposal could simplify the system implementation and improve the signal processing efficiency without PAPR performance degradation.
Keywords :
OFDM modulation; fast Fourier transforms; frequency-domain analysis; interferometry; matrix algebra; pulse shaping; signal processing; CI-OFDM signals; carrier interferometry orthogonal frequency division multiplexing; frequency domain analysis; inverse fast Fourier transform; linear transform matrix; pulse shaping technique; signal processing efficiency; Fast Fourier transforms; Frequency domain analysis; Interferometry; OFDM; Peak to average power ratio; Proposals; Pulse generation; Pulse shaping methods; Signal generators; Signal processing; CI/OFDM; Carrier Interferometry (CI); IFFT; Pulse Shaping;
Conference_Titel :
Anti-counterfeiting, Security, Identification, 2007 IEEE International Workshop on
Conference_Location :
Xiamen, Fujian
Print_ISBN :
1-4244-1035-5
Electronic_ISBN :
1-4244-1035-5
DOI :
10.1109/IWASID.2007.373647
