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引用次数: 1
摘要
LTE (Long Term Evolution)技术可以提供100mbps和30mbps的下行和上行。它在延迟和可扩展带宽容量方面的改进主要取决于信道数量和质量。使用环境保护局(EPA)和扩展典型城市(ETU)模型分析LTE下行链路的性能可以更好地利用这些网络。因此，本文将对FDD(频分双工)模式下LTE下行信道的物理层进行分析。本文将LTE物理下行链路共享信道(PDSCH)的两种传播技术进行比较，从中选择最佳的一种。仿真结果表明，在所有多普勒值下，ETU比EPA更好更快地达到目标吞吐量，并且在所有情况下都能达到更高的最大吞吐量。
Analysis and Simulation of LTE Downlink: EPA and ETU model
Long Term Evolution (LTE) technology can provide 100 Mbps and 30 Mbps in down and upstream. Its improvement in latency and scalable bandwidth capacity depend mainly on the channel numbers and quality. Analysing the performance of LTE downlink using Environmental Protection Agency (EPA) and Extended Typical Urban (ETU) models can lead to better usage of these networks. Therefore, in this paper physical layer for downlink channel of LTE in FDD (frequency division duplexing) mode will be analysed. Where the two propagation techniques of LTE Physical Downlink Shared Channel (PDSCH) will be compare to choose the best in this paper. The simulation results show that ETU better and faster than EPA in reaching target throughput and reaching higher maximum throughput for all cases at all Doppler values.
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