DocumentCode :
1708142
Title :
Decision feedback equalization in SC-FDMA
Author :
Huang, Gillian ; Nix, Andrew ; Armour, Simon
Author_Institution :
Centre for Commun. Res., Univ. of Bristol, Bristol
fYear :
2008
Firstpage :
1
Lastpage :
5
Abstract :
SC-FDMA (Single-Carrier Frequency Division Multiple Access) is employed in the 3GPP LTE (Long-Term Evolution) standard as the uplink transmission scheme. The SC-FDMA signal has a low PAPR. This makes it well-suited to power efficient transmission at the mobile terminal. Although it is a common assumption to use frequency-domain linear equalization in SC-FDMA, a decision feedback equalizer (DFE) composed of a frequency-domain feedforward filter and a time-domain feedback filter can provide enhanced performance. Even when error propagation is taken into account, results show that a DFE still offers a significant performance gain over the conventional LE for uncoded SC-FDMA. This paper demonstrates that SC-FDMA with DFE is capable of increasing the throughput in a power limited channel by up to 41% compared to LE. Alternatively, for a given peak transmit power, the use of a DFE can achieve a 14% coverage extension in NLOS and 19% in LOS.
Keywords :
3G mobile communication; decision feedback equalisers; frequency division multiple access; 3GPP LTE; Long-Term Evolution; SC-FDMA; decision feedback equalization; frequency-domain feedforward filter; single-carrier frequency division multiple access; time-domain feedback filter; Bandwidth; Decision feedback equalizers; Dynamic scheduling; Frequency domain analysis; Maximum likelihood estimation; Nonlinear filters; Peak to average power ratio; Quality of service; Resource management; Time domain analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on
Conference_Location :
Cannes
Print_ISBN :
978-1-4244-2643-0
Electronic_ISBN :
978-1-4244-2644-7
Type :
conf
DOI :
10.1109/PIMRC.2008.4699507
Filename :
4699507
Link To Document :
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