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Sociedade Brasileira de Telecomunicações

Sinc Exponential ISI-Free Pulse with Better Performance

In this manuscript, the sinc exponential pulse (SEP) is evaluated at the transmitter and receiver side by using different metrics. The impulse response of the SEP is derived, analysed, and compared with the traditional RC pulse. The SEP is characterized by introducing two new design parameters, adding degrees of freedom to optimize the pulse for a certain transmission scheme and roll-off factor. The SEP is optimized via numerical simulations to diminish the bit error rate (BER) in the presence of symbol timing errors. Eye diagrams are used to visually evaluate the sensitivity of the communication system due to intersymbol interference (ISI). In general, the SEP outperforms other existing pulses in terms of BER, evaluated for different symbol timing-errors and roll-off factors.

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