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