"Single Carrier Frequency Division Multiple Access" (SC-FDMA) is a strong candidate for uplink transmissions in the 3G Long Term Evolution (LTE) standard. SC-FDMA is a multiple access scheme that uses DFT spreading prior to OFDM modulation to map the signal from each user to a subset of the available subcarriers. SC-FDMA has a significantly lower peak-to-average power ratio (PAPR) compared to OFDM/OFDMA. This greatly improves its RF power amplifier efficiency and also the mean power output from a battery driven mobile terminal. In this paper, the impact of radio resource allocation and pulse shaping on the PAPR of SC-FDMA signals are investigated, especially for localized FDMA (LFDMA) signals. It is shown that distributed FDMA (DFDMA) signals with raised cosine filtering experience reduced PAPR as Â¿ increases. However, for LFDMA signals the PAPR increases with increasing Â¿ and further varies according to the allocated resource unit.
|Translated title of the contribution||Impact of radio resource allocation and pulse shaping on PAPR of SC-FDMA signals|
|Title of host publication||IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007 (PIMRC 2007), Athens|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Pages||1 - 5|
|Number of pages||5|
|Publication status||Published - Sep 2007|
|Event||18th International Symposium on Personal, Indoor and Mobile Radio Communications (2007) - Athens, Greece|
Duration: 1 Sep 2007 → …
|Conference||18th International Symposium on Personal, Indoor and Mobile Radio Communications (2007)|
|Period||1/09/07 → …|
Bibliographical noteConference Proceedings/Title of Journal: IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, 2007 (PIMRC 2007)
Rose publication type: Conference contribution
Additional information: With accompanying conference presentation
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