Title :
Performance of single-carrier block transmissions over multipath fading channels with MMSE equalization
Author :
Ohno, Shuichi ; Teo, Kok Ann Donny
Author_Institution :
Dept. of Artificial Complex Syst. Eng., Hiroshima Univ.
Abstract :
We study uncoded bit-error rate (BER) performance of single-carrier block transmissions, zero-padded (ZP) transmission and cyclic-prefixed (CP) transmission, when minimum mean-squared error (MMSE) equalizers are applied. We show analytically that the BER of ZP transmission with MMSE equalization degrades as the bandwidth efficiency increases, i.e. there is a trade-off between BER and bandwidth efficiency in ZP transmission. It is also proven that ZP transmission outperforms CP transmission and uncoded orthogonal frequency-division multiplexing (OFDM) on the average. Numerical examples are provided to validate our theoretical findings and to compare the block transmission systems
Keywords :
OFDM modulation; equalisers; error statistics; fading channels; least mean squares methods; multipath channels; BER; MMSE equalization; OFDM; bit-error rate; cyclic-prefixed transmission; minimum mean-squared error; multipath fading channels; orthogonal frequency-division multiplexing; single-carrier block transmissions; zero-padded transmission; Bandwidth; Bit error rate; Degradation; Fading; Frequency division multiplexing; Frequency domain analysis; Intersymbol interference; OFDM; Systems engineering and theory; Transmitters;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1578040
