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.
|Translated title of the contribution||Decision feedback equalization in SC-FDMA|
|Title of host publication||IEEE Personal and Indoor Mobile Radio Conference 2008 (PIMRC), Cannes|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Pages||1 - 5|
|Number of pages||5|
|Publication status||Published - Sep 2008|
|Event||19th International Symposium on Personal, Indoor and Mobile Radio Communications (2008) - Cannes, France|
Duration: 1 Sep 2008 → …
|Conference||19th International Symposium on Personal, Indoor and Mobile Radio Communications (2008)|
|Period||1/09/08 → …|
Bibliographical noteRose publication type: Conference contribution
Additional information: With accompanying conference presentation
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