![](/images/graphics-bg.png)
Practical BER-Based Estimation of Residual OFDM CFO by Reducing Noise Margin
Joint Authors
Mihaljević, Ante
Lipovac, Adriana
Lipovac, Vlatko
Musovic, Jasmin
Source
Wireless Communications and Mobile Computing
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-26
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Information Technology and Computer Science
Abstract EN
The main OFDM drawbacks are Carrier Frequency Offset (CFO) and large Peak-to-Average Power Ratio (PAPR), which both degrade the Bit Error Rate (BER).
Specifically, we consider here clipping or any other PAPR reduction method sufficient to prevent the nonlinear high-power amplifier from generating errors.
Moreover, in small cells, the signal-to-noise ratio is large, while the small time dispersion allows the OFDM symbol cyclic prefix to prevent intersymbol interference.
This retains the CFO to solely determine the BER and vice versa, enabling indirect estimation of CFO-induced phase distortion by simple BER testing.
However, a particular problem is measuring very low BER values (generated by alike residual CFO), which could last a long time in order to acquire statistically enough errors.
The test time can be drastically reduced if the noise margin is reduced in a controllable way, by adding the interfering signal to each subcarrier at the receiver.
This approach is shown to enable efficient and accurate short-term BER (and so CFO phase error) testing.
American Psychological Association (APA)
Mihaljević, Ante& Lipovac, Adriana& Lipovac, Vlatko& Musovic, Jasmin. 2020. Practical BER-Based Estimation of Residual OFDM CFO by Reducing Noise Margin. Wireless Communications and Mobile Computing،Vol. 2020, no. 2020, pp.1-5.
https://search.emarefa.net/detail/BIM-1214856
Modern Language Association (MLA)
Mihaljević, Ante…[et al.]. Practical BER-Based Estimation of Residual OFDM CFO by Reducing Noise Margin. Wireless Communications and Mobile Computing No. 2020 (2020), pp.1-5.
https://search.emarefa.net/detail/BIM-1214856
American Medical Association (AMA)
Mihaljević, Ante& Lipovac, Adriana& Lipovac, Vlatko& Musovic, Jasmin. Practical BER-Based Estimation of Residual OFDM CFO by Reducing Noise Margin. Wireless Communications and Mobile Computing. 2020. Vol. 2020, no. 2020, pp.1-5.
https://search.emarefa.net/detail/BIM-1214856
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1214856