Impacts of Amplifier Nonlinearities on Uplink Performance in 3G LTE Systems

Kan Zheng; Meiying Wei; Hang Long; Yang Liu; Wenbo Wang

ChinaCom2009-Wireless Communications and Networking Symposium

Research Article

Impacts of Amplifier Nonlinearities on Uplink Performance in 3G LTE Systems

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/CHINACOM.2009.5339757,
    author={Kan Zheng and Meiying Wei and Hang Long and Yang Liu and Wenbo Wang},
    title={Impacts of Amplifier Nonlinearities on Uplink Performance in 3G LTE Systems},
    proceedings={ChinaCom2009-Wireless Communications and Networking Symposium},
    publisher={IEEE},
    proceedings_a={CHINACOM2009-WCN},
    year={2009},
    month={11},
    keywords={OFDM; SC-FDMA; HPA; AMC},
    doi={10.1109/CHINACOM.2009.5339757}
}

Kan Zheng
Meiying Wei
Hang Long
Yang Liu
Wenbo Wang
Year: 2009
Impacts of Amplifier Nonlinearities on Uplink Performance in 3G LTE Systems
CHINACOM2009-WCN
IEEE
DOI: 10.1109/CHINACOM.2009.5339757

Kan Zheng¹^,*, Meiying Wei¹, Hang Long¹, Yang Liu¹, Wenbo Wang¹

1: Wireless Signal Processing and Network Lab Key laboratory of Universal Wireless Communication, Ministry of Education Beijing University of Posts&Telecommunications Beijing, China, 100088

*Contact email: kzheng@ieee.org

Abstract

As good candidates for uplink multiple access scheme in broadband wireless communication systems, orthogonal frequency division multiplexing (OFDM) and single-carrier (SC) with frequency division multiple access (FDMA) have gained enough attention recently. However, the non-linearity of amplifier deteriorates the performances of these two schemes. On the assumption of non-linear amplifier applied, we compare the block error rate (BLER) and throughput performances between SCFDMA and OFDM schemes in the framework of third generation (3G) long-term evolution (LTE) systems, where the adaptive modulation and coding (AMC) technique with slow power control is used. Our simulation results show that the impacts of nonlinearity on two schemes are different and dependent on several factors including the power gain of the amplifier

Keywords: OFDM; SC-FDMA; HPA; AMC

Published: 2009-11-20
Publisher: IEEE
Modified: 2010-05-16

: http://dx.doi.org/10.1109/CHINACOM.2009.5339757