SDR Based Modulation Performance of RF Signal under Different Communication Channel

IF 0.6 4区 计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI:10.47037/2021.aces.j.360813
S. Habib
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引用次数: 2

Abstract

─ Hardware components are an integral part of Hardware Define Radio (HDR) for seamless operations and optimal performance. On the other hand, Software Define Radio (SDR) is a program that does not rely on any hardware components for its performance. Both of the latter radio programmers utilize modulation functions to make their core components from signal processing viewpoint. The following paper concentrates on SDR based modulation and their performance under different modulations. The bit error rate (BER) of modulations such as PSK, QAM, and PSAM were used as indicators to test channel quality estimation in planar Rayleigh fading. Though it is not commonly used for channel fading, the method of the adder determines the regionally segmented channel fading. Thus, the estimation error of the channel change substantially reduces the performance of the signal, hence, proving to be an effective option. Moreover, this paper also elaborates that BER is calculated as a function of the sample size (signal length) with an average of 20 decibels. Consequently, the size of the results for different modulation schemes has been explored. The analytical results through derivations have been verified through computer simulation. The results focused on parameters of amplitude estimation error for 1dB reduction in the average signal-to-noise ratio, while the combined amplitude deviation estimation error results are obtained for a 3.5 dB reduction. Index Terms ─ Bit error rate, receiver operation, RF signal, signal noise ratio, transmitter, wireless channel.
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不同通信信道下基于SDR的射频信号调制性能研究
硬件组件是硬件定义无线电(HDR)的组成部分,可实现无缝操作和最佳性能。另一方面,软件定义无线电(SDR)是一种不依赖任何硬件组件来实现其性能的程序。从信号处理的角度来看,后两种无线电编程器都利用调制函数来制作其核心组件。本文主要研究基于SDR的调制及其在不同调制下的性能。以PSK、QAM和PSAM等调制的误码率(BER)为指标,对平面瑞利衰落下的信道质量估计进行了测试。虽然加法器在信道衰落中不常用,但它的方法决定了区域分割信道衰落。因此,信道变化的估计误差大大降低了信号的性能,因此,证明是一种有效的选择。此外,本文还详细阐述了误码率是作为样本大小(信号长度)的函数计算的,平均为20分贝。因此,对不同调制方案的结果大小进行了探讨。通过计算机仿真验证了推导的分析结果。结果集中在平均信噪比降低1dB的幅度估计误差参数上,得到了平均信噪比降低3.5 dB的组合幅度偏差估计误差结果。索引术语─误码率、接收机操作、射频信号、信噪比、发射机、无线信道。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.60
自引率
28.60%
发文量
75
审稿时长
9 months
期刊介绍: The ACES Journal is devoted to the exchange of information in computational electromagnetics, to the advancement of the state of the art, and to the promotion of related technical activities. A primary objective of the information exchange is the elimination of the need to "re-invent the wheel" to solve a previously solved computational problem in electrical engineering, physics, or related fields of study. The ACES Journal welcomes original, previously unpublished papers, relating to applied computational electromagnetics. All papers are refereed. A unique feature of ACES Journal is the publication of unsuccessful efforts in applied computational electromagnetics. Publication of such material provides a means to discuss problem areas in electromagnetic modeling. Manuscripts representing an unsuccessful application or negative result in computational electromagnetics is considered for publication only if a reasonable expectation of success (and a reasonable effort) are reflected. The technical activities promoted by this publication include code validation, performance analysis, and input/output standardization; code or technique optimization and error minimization; innovations in solution technique or in data input/output; identification of new applications for electromagnetics modeling codes and techniques; integration of computational electromagnetics techniques with new computer architectures; and correlation of computational parameters with physical mechanisms.
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