Throughput Analysis of Non-Linear Waveform Non-Orthogonal Multiple Access System with Imperfect Channel State Information

被引：0
|
作者：
Li S. [1 ]
Dang X. [1 ]
Yu X. [1 ]
Hao C. [1 ]
Li J. [1 ]
Zhang J. [1 ]
机构：
[1] College of Electronic Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing
来源：
Dianzi Yu Xinxi Xuebao/Journal of Electronics and Information Technology | 2022年 / 44卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Channel estimation error; Imperfect Channel State Information (CSI); Minimum Shift Keying (MSK)-type modulations; Non-Orthogonal Multiple Access (NOMA); System throughput;
D O I：
10.11999/JEIT210571
中图分类号：
学科分类号：
摘要：
Focusing on problems of Non-Orthogonal Multiple Access (NOMA) that are limited to linear modulation, and considering the imperfect Channel State Information (CSI) in the actual system, this paper proposes a nonlinear waveform NOMA system under imperfect CSI based on Minimum Shift Keying type (MSK-type) modulations. First, two-user uplink asynchronous and synchronous system models are established using oversampling and matched filtering techniques. Furthermore, based on the matrix decomposition theory and Successive Interference Cancellation (SIC) mechanism, the transmit power and normalized delay when the system throughput reaches the maximum under perfect or imperfect CSI are derived. Finally, the numerical simulation results show the relationship between system throughput and system parameters such as frame length, response length, waveform, and frequency pulse under perfect and imperfect CSI. © 2022 Science Press. All rights reserved.
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页码：2749 / 2756
页数：7
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