File(s) under permanent embargo
PAPR reduction technique for LTE OFDMA systems
conference contribution
posted on 2010-01-01, 00:00 authored by M Rana, Abbas KouzaniAbbas Kouzani, Saiful IslamLong term evolution (LTE) is the final step toward the 4th generation (4G) of radio technologies designed to increase the capacity and speed of mobile networks. LTE uses orthogonal frequency division multiple access (OFDMA) for the downlink transmission and single carrier-frequency division multiple access (SC-FDMA) for uplink. OFDMA meets the 4G requirement for spectrum flexibility and enables cost-efficient solutions for very wide carriers with high peak rates. However, the potentially large peak-to-average power ratio (PAPR) of the transmitting signals has limited its application. This high PAPR causes interference when the OFDM signals are passed through an amplifier which does not have enough linear range. In this article, we investigate a clipping based PAPR reduction method for LTE OFDMA systems. Simulation results show that the clipping method is reduced PAPR significantly which decreases as the number of clip and filtering level is increased. As a results, increase the mean transmit power, and improve the power amplifier efficiency. This comes at the outlay of complexity, efficiency as well as cost.
History
Event
International Conference on Future Information Technology (2010 : Changsha, China)Publisher
Institute of Electrical and Electronics Engineers, Inc.Location
Changsha, ChinaPlace of publication
[Chengdu, China]Start date
2010-12-14End date
2010-12-15ISBN-13
9781424483709ISBN-10
1424483700Language
engPublication classification
E1 Full written paper - refereedCopyright notice
2010, Institute of Electrical and Electronics Engineers Inc.Title of proceedings
ICFIT 2010 : Proceedings of the 2010 International Conference on Future Information TechnologyUsage metrics
Categories
No categories selectedLicence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC