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- W2185928628 abstract "The demand for higher data rates over wireless channels is growing day by day. This had provided by 4G systems by using multicarrier communication systems like OFDM. The BER of 4G systems can further improve by doing time, frequency analysis of signal while propagating in the channel. In this paper, Fractional Fourier transformation (FrFT) based OFDM system had presented with 512-PSK modulation technique. The BER response of proposed system had analysed under various wireless fading channels like AWGN, Rayleigh, Rician and Nakagami channels. The proposed system achieved improvement of 1.5 dB BER at 10 -2.9 SNR for 0.9 opt α = under the AWGN channel for 512-PSK modulation technique. For Rayleigh and Rician channel proposed system for 512-PSK modulation achieved 1.5 dB improvement in BER at 10 -2.9 SNR under both channels for 0.4 opt α = and 0.9 opt α = respectively. Under Nakagami channel, said system achieved 1.0 dB improvement in BER at 10 -2.8 SNR for 0.4 opt α = using the 512-PSK modulation technique." @default.
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- W2185928628 date "2014-01-01" @default.
- W2185928628 modified "2023-09-30" @default.
- W2185928628 title "FrFT based OFDM system for Wireless Communication" @default.
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