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A 1.6 Tbit/s/ch single-carrier transmission of 32 QAM coherent pulses over 150 km was demonstrated using an RZ-CW conversion technique and frequency-domain equalization (FDE). A large improvement in the bit-error-rate characteristics was achieved with FDE.
This paper proposes an effective iterative clipping (IC) on a coded carrier interferometry OFDM (CI/OFDM) system for improving the system performances over the nonlinearity of a solid state power amplifier (SSPA). An additional filtering is not required to remove the out-of-band (OOB) spectrum radiation as required in the conventional clipping method. The IC is designed with a minimized computational...
In this paper, we propose a novel fast and low complexity algorithm of computation for minimum-mean-square-error (MMSE) equalizer or combiner without divisions. Multiplicative effect of fading channel should be compensated by divisions at the receiver. Therefore, equalizer or combiner at the receiver is derived by inverting the channel impulse responses. Here, the number of divisions equals to the...
This paper proposes a new technique for peak-to-average-power ratio (PAPR) reduction without spectrum broadening for Carrier Interferometry orthogonal frequency division multiplexing (CI/OFDM) system. Recently, Carrier Interferometry (CI) code is becoming an interesting code for reducing the PAPR of OFDM system. However, for guaranteeing the low PAPR as the PAPR of single carrier (i.e. by about 4-6dB...
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