Capacity and BER Performance Considerations on Single-Carrier Frequency-Domain Equalization

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Single-Carrier (SC) waveform has a lower peak-to-average power ratio than multi-carrier waveform. Furthermore, it can exploit the channel frequency-selectivity through Frequency-Domain Equalization (FDE) to improve the transmission performance. SC-FDE is a block transmission. The Cyclic Prefix (CP) is inserted in front of each data block. Instead of CP insertion, the known Training Sequence (TS) insertion and Zero Padding (ZP) can be used. In this paper, performance comparison is made among CP-, TS-, and ZP-SC in terms of the channel capacity and average Bit Error Rate (BER) performance in a frequency-selective Rayleigh fading channel.