OFDM和UFMC调制方案的研究与比较分析

Karthik Kumar Vaigandla, Mounika Siluveru, Radhakrishna Karne
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引用次数: 3

摘要

在许多领域,都使用无线系统。为了分配可用的时间和频率资源,这些无线系统需要灵活的机制。使用5G,传输速率将更高,延迟将更低,服务质量和信道容量将更高。物理层必须能够产生柔性波形以满足上述要求。目前,正交频分复用(OFDM)传输不支持5G通信。在4G/OFDM中,在带外发射、频谱效率、峰值平均功率比(PAPR)等方面存在很多问题。为了解决这一问题,提出了通用滤波多载波(UFMC)传输方案。本文对OFDM和UFMC进行了比较。本文的目的是讨论频谱密度、频谱效率、信噪比和误码率。与OFDM相比,UFMC提供了更好的性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study and Comparative Analysis of OFDM and UFMC Modulation Schemes
In various areas, wireless systems are used. In order to allocate the available time and frequency resources, these wireless systems require flexible mechanisms. With 5G, transmission rates will be higher, latency will be lower and quality of service and channel capacity will be higher. The physical layer must be able to generate flexible waveforms to meet the above requirements. Currently, Orthogonal Frequency Division Multiplexing (OFDM) transmission does not support 5G communication. In the case of 4G/OFDM, there are many problems in terms of out of band emission, spectral efficiency, and peak to average power ratio (PAPR). An alternative transmission scheme Universal Filtered Multicarrier (UFMC) is introduced to address this problem. The paper compares OFDM with UFMC. The purpose of this paper is to discuss Spectral Density, Spectral Efficiency, Signal to Noise Ratio (SNR) and Bit Error Rate (BER). In comparison to OFDM, UFMC provides better performance.
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