Title :
A Novel Implementation of Carrier Interferometry OFDM in an Underwater Acoustic Channel
Author :
Xu, Fang ; Hu, Xiaoyi ; Xu, Ru
Author_Institution :
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 transformation. 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) and BER performance have been compared between OFDM and our proposal. Simulation results show that our proposal possess good PAPR and BER performance. Additionally, it could simplify the CI/OFDM system implementation significantly.
Keywords :
OFDM modulation; error statistics; fast Fourier transforms; intercarrier interference; inverse problems; pulse shaping; spread spectrum communication; underwater acoustic communication; BER performance; IFFT; PAPR performance; carrier interferometry OFDM signal; carrier interferometry spreading codes; frequency domain pulse shaping method; inverse fast Fourier transform; orthogonal frequency division multiplexing; peak to average power ratio; underwater acoustic channel; Bit error rate; Fast Fourier transforms; Frequency domain analysis; Interferometry; OFDM; Peak to average power ratio; Proposals; Pulse generation; Pulse shaping methods; Underwater acoustics; CI/OFDM; Carrier Interferometry (CI); IFFT; Pulse Shaping;
Conference_Titel :
OCEANS 2007 - Europe
Conference_Location :
Aberdeen
Print_ISBN :
978-1-4244-0635-7
Electronic_ISBN :
978-1-4244-0635-7
DOI :
10.1109/OCEANSE.2007.4302439
