The effect of blockwise transmission on higher-order modulation schemes for SC/FDE

The effect of blockwise transmission on higher-order modulation schemes for SC/FDE

This paper compares the performance of higher-order modulation schemes and coding rates for a single carrier system with frequency domain equalization (SC/FDE) and orthogonal frequency division multiplexing (OFDM). The effects of cyclic prefix and blockwise equalization for SC/FDE are investigated i...

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Hauptverfasser: Witschnig, H., Ossberger, G., Springer, A., Koppler, A., Maurer, L., Huemer, M., Weigel, R.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Adaptive signal processing
Baseband
Bit error rate
Finite impulse response filter
Frequency domain analysis
Modulation coding
OFDM modulation
Quadrature amplitude modulation
Telecommunication standards
Wireless LAN
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Beschreibung
Zusammenfassung:This paper compares the performance of higher-order modulation schemes and coding rates for a single carrier system with frequency domain equalization (SC/FDE) and orthogonal frequency division multiplexing (OFDM). The effects of cyclic prefix and blockwise equalization for SC/FDE are investigated in detail. It is shown that blockwise processing leads to a deterioration in terms of BER behavior - especially for higher modulation formats such as 16 QAM or 64 QAM. The most reliable solution to this problem is coding. Applying a high-rate code compensates the investigated effect completely. The achieved BER behavior is compared with the results of an OFDM system.
ISSN:1347-6890
DOI:10.1109/WPMC.2002.1088394