OFDM for Wireless Multimedia Communications
OFDM for Wireless Multimedia Communications
IEEE Transactions on Wireless Communications
Frequency domain equalization for single-carrier broadband wireless systems
IEEE Communications Magazine
An efficient receiver for preamble detection in LTE SC-FDMA systems with an antenna array
IEEE Communications Letters
The Effect of Decision Delay in MMSE-THP Systems
Wireless Personal Communications: An International Journal
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At present there is considerable interest in the use of single carrier frequency-division multiple access. This interest is justified by the inherent single carrier structure of the SC-FDMA scheme, which is more robust against phase noise and has a lower peak-to-average power ratio than orthogonal frequency-division multiple access. This consequently makes it more attractive for uplink transmission from low-cost devices with limited transmit power. SC-FDMA commonly makes use of frequency domain linear equalization in order to combat the frequency selectivity of the transmission channel. Frequency domain decision feedback equalization, composed of a frequency domain feed forward filter and a time domain feedback filter, outperforms LE due to its ability to cancel precursor echoes. Although these solutions suffer from error propagation, results show that DFE still offers a significant performance gain over conventional LE for uncoded SC-FDMA. In this article we show how precoding can be used on the uplink of the LTE standard to overcome the frequency selective nature of the radio channel. We propose a frequency domain implementation of Tomlinson-Harashima precoding and investigate the bit error rate and the PAPR performance for SC-FDMA using ZF and MMSE THP.