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A New SLM-UFMC Model for Universal Filtered Multi-Carrier to Reduce Cubic Metric and Peak to Average Power Ratio in 5G Technology
Symmetry ( IF 2.2 ) Pub Date : 2020-06-01 , DOI: 10.3390/sym12060909
Farooq Sijal Shawqi , Lukman Audah , Salama A. Mostafa , Saraswathy Shamini Gunasekaran , Abdullah Baz , Ahmed Talaat Hammoodi , Hosam Alhakami , Mustafa Hamid Hassan , Mohammed Ahmed Jubair , Wajdi Alhakami

The new generation of wireless communication systems has adopted different waveforms. The universal filtered multicarrier is one of the adopted candidates that has symmetry with various numerology designs. However, the high peak to average power ratio is one of the major limitations faced by universal filter multicarrier (UFMC) designers. Moreover, recent studies utilize cubic metric along with the peak to average power ratio (PAPR) to show the power back-off effect of the signal in which the PAPR metric identifies the maximum peak and the cubic metric (CM) identifies the Out of Band emission and In-Band distortion. Most of the current solutions, such as amplitude clipping, tone reservation, and active constellation extension, decrease the PAPR but cause degradation to the bit error rate. Selected mapping is one of the promising techniques that is recently used to solve the PAPR and CM problems without causing bit error rate (BER) degradation. In this paper, the selected mapping (SLM) is integrated with UFMC to reduce the PAPR and CM without affecting the BER of 5G networks. The SLM-UFMC solution model is simulated by MATLAB and the results show that the SLM-UFMC model presents better PAPR and CM performance without BER degradation. The PAPR has been decreased to 1.5 dB with respect to eight-phase rotation vectors and the CM decreased to 1.25 dB compared to the conventional UFMC.

中文翻译:

一种用于通用滤波多载波的新 SLM-UFMC 模型,可降低 5G 技术中的立方公制和峰均功率比

新一代无线通信系统采用了不同的波形。通用滤波多载波是采用的候选之一,它与各种命理学设计具有对称性。然而,高峰均功率比是通用滤波器多载波 (UFMC) 设计人员面临的主要限制之一。此外,最近的研究利用立方度量以及峰均功率比 (PAPR) 来显示信号的功率回退效应,其中 PAPR 度量标识最大峰值,而立方度量 (CM) 标识带外发射和带内失真。当前的大多数解决方案,例如幅度限幅、音调保留和有源星座扩展,都降低了 PAPR,但会导致误码率下降。选择映射是最近用于解决 PAPR 和 CM 问题而不导致误码率 (BER) 降级的有前途的技术之一。在本文中,选择映射(SLM)与 UFMC 相结合,以在不影响 5G 网络的 BER 的情况下降低 PAPR 和 CM。SLM-UFMC求解模型通过MATLAB仿真,结果表明SLM-UFMC模型在不降低BER的情况下表现出更好的PAPR和CM性能。与传统 UFMC 相比,八相旋转矢量的 PAPR 降低至 1.5 dB,CM 降低至 1.25 dB。SLM-UFMC求解模型通过MATLAB仿真,结果表明SLM-UFMC模型在不降低BER的情况下表现出更好的PAPR和CM性能。与传统 UFMC 相比,八相旋转矢量的 PAPR 降低至 1.5 dB,CM 降低至 1.25 dB。SLM-UFMC求解模型通过MATLAB仿真,结果表明SLM-UFMC模型在不降低BER的情况下表现出更好的PAPR和CM性能。与传统 UFMC 相比,八相旋转矢量的 PAPR 降低至 1.5 dB,CM 降低至 1.25 dB。
更新日期:2020-06-01
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