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首页> 外文会议>2019 1st Global Power, Energy and Communication Conference >Investigation of Inter-User Interference Effect on 5G Uplink Communications
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Investigation of Inter-User Interference Effect on 5G Uplink Communications

机译：用户间干扰对5G上行通信的影响研究

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摘要

Manifold connected devices are expected in Fifth Generation (5G) wireless communication systems that may lead to serious interference issues among the User Equipments (UEs). This inter-user(s) interference certainly degrade the performance of devices in terms of Bit Error Rate (BER) and throughput. This paper investigates the impact of different modulation waveforms such as Orthogonal Frequency Division Modulation (OFDM), Filtered OFDM (F-OFDM) and Filtered Bank Multiple Carrier (FBMC) on the performance of devices in 5G uplink communications and sorts out which waveform provides optimal results in the presence of inter-user interference. To analyze the effect of inter-user interference, a general model is constructed consists of two cells each having single UE and a Base Station (BS) for simplicity. Pedestrian A channel model is chosen in this study, whereas Low-Density Polarity-Check (LDPC) coding scheme is considered for channel coding for all the considered waveforms. The performance of the system in terms of BER, throughput and Peak-to-Average Power Ratio (PAPR) for the aforementioned waveforms are analyzed through simulation studies. According to simulation results, FBMC waveform generally outperforms OFDM and F-OFDM in all the performance metrics (i.e., BER, throughput and PAPR).
机译：预计在第五代（5G）无线通信系统中与歧管连接的设备可能会导致用户设备（UE）之间出现严重的干扰问题。这种用户间干扰肯定会在误码率（BER）和吞吐量方面降低设备的性能。本文研究了诸如正交频分调制（OFDM），滤波OFDM（F-OFDM）和滤波组多载波（FBMC）之类的不同调制波形对5G上行通信中设备性能的影响，并找出哪种波形可提供最佳性能导致用户间干扰的存在。为了分析用户间干扰的影响，为简单起见，构建了一个通用模型，该模型由两个小区组成，每个小区具有一个UE和一个基站（BS）。在这项研究中，选择了行人通道模型，而对于所有考虑的波形，则考虑使用低密度极性检查（LDPC）编码方案进行通道编码。通过仿真研究，分析了上述波形在误码率，吞吐量和峰均功率比（PAPR）方面的系统性能。根据仿真结果，FBMC波形在所有性能指标（即BER，吞吐量和PAPR）上通常都优于OFDM和F-OFDM。

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