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LTE建议在超三代移动通信系统的上行链路采用SC-FDMA传输方案。首先介绍带循环前缀的SC-FDMA传输方案。在此传输方案的基础上,引入频域均衡技术,并且考察在多径干扰环境下频域均衡技术对SC-FDMA性能的改善,通过MATLAB来进行上行链路的仿真,针对系统处于具有不同用户数目、不同子载波映射方式的场景给出了相应的性能比较。
LTE proposes to adopt the SC-FDMA transmission scheme in the uplink of the super 3G mobile communication system. First introduce the SC-FDMA transmission scheme with cyclic prefix. Based on this transmission scheme, the frequency-domain equalization technique is introduced, and the improvement of SC-FDMA performance in frequency-domain equalization technology under multi-path interference environment is investigated. The simulation of the uplink is carried out by using MATLAB, and the system is under the condition of different users The number of different subcarrier mapping scenarios gives the corresponding performance comparison.