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Author(s): |
An-yi Wang, Communication and Information Engineering College Xi'an University of Science and Technology, Xi'an, China, 710054
Xiao-qin Ren, Communication and Information Engineering College Xi'an University of Science and Technology, Xi'an, China, 710054
Zhao-yang Liu, Communication and Information Engineering College Xi'an University of Science and Technology, Xi'an, China, 710054
Wei-jie Ma, Department of Computer Science and ApplicationZhengzhou Institute of Aeronautical Industry, Zhengzhou, china, 450046 |
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Abstract: |
LTE physical layer protocol provides QPSK, 16QAM, 64QAM for LTE downlink modulation techniques . To achieve better spectral efficiency，it is able to choose 64QAM modulation, however, it also will inevitably bring higher error rate, so this paper does some study and analysis of modulation mapping technology.Firstly,we must set up LTE downlink physical layer simulation platform , and make some simulation analysis based on this platform , simulation result shows that the BER of QPSK modulation is least ,so QPSK modulation is better than other .
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