Title :
Analysis of FH multi-user DFT spreading OFDM system for anti-jamming
Author :
Kim, Jangsu ; Ryu, Heung-Gyoon
Author_Institution :
Dept. of Electron. Eng., Chungbuk Nat. Univ., Cheongju, South Korea
Abstract :
DFT (discrete Fourier transform) spreading OFDM (orthogonal frequency division multiplexing) system is used as a promising technique to solve high PAPR (peak to average power ratio) problem of OFDM system. DFT spreading system is much sensitive than OFDM system against jamming signal because jamming signal is divided into all sub-carrier by IDFT process of DFT spreading OFDM although it has better transmission power efficiency. Therefore, we like to analyze effect of jamming signal to DFT spreading OFDM system by considering Multi-tone jamming (MTJ) and partial band jamming (PBJ). And to make anti-jamming system we adapt frequency hopping method of spread spectrum methods and analyze system performance according to the processing gain related the number of frequency hopping bins.
Keywords :
OFDM modulation; discrete Fourier transforms; jamming; anti-jamming system; discrete Fourier transform; frequency hopping method; multi-tone jamming; orthogonal frequency division multiplexing; partial band jamming; peak to average power ratio; signal jamming; spread spectrum methods; Bandwidth; Bit error rate; Discrete Fourier transforms; Jamming; Peak to average power ratio; Spread spectrum communication; DFT; DFT spreading OFDM; MTJ; PBJ; frequency hopping; jamming;
Conference_Titel :
Information and Communication Technology Convergence (ICTC), 2010 International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-1-4244-9806-2
DOI :
10.1109/ICTC.2010.5674718
