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New upper bounds on the Gaussian Q-function via Jensen's inequality and integration by parts, and applications in symbol error probability analysis
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  • Hang-Dan Zheng,
  • Ming-Wei Wu,
  • Hang Qiu,
  • Pooi-Yuen Kam
Hang-Dan Zheng
Zhejiang University of Science and Technology
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Ming-Wei Wu
Zhejiang University of Science and Technology School of Information and Electronic Engineering

Corresponding Author:[email protected]

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Hang Qiu
Zhejiang University of Science and Technology
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Pooi-Yuen Kam
The Chinese University of Hong Kong - Shenzhen
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Abstract

Using Jensen's inequality and integration by parts, we derive some tight upper bounds on the Gaussian Q-function. The tightness of the bounds obtained by Jensen's inequality can be improved by increasing the number of exponential terms, and one of them is invertible. We obtain a piece-wise upper bound and show its application in the analysis of the symbol error probability of various modulation schemes in different channel models.
26 Apr 2023Submitted to Electronics Letters
26 Apr 2023Submission Checks Completed
26 Apr 2023Assigned to Editor
04 May 2023Reviewer(s) Assigned
18 May 2023Review(s) Completed, Editorial Evaluation Pending
20 Jun 2023Editorial Decision: Revise Major
12 Sep 20231st Revision Received
15 Sep 2023Submission Checks Completed
15 Sep 2023Assigned to Editor
15 Sep 2023Review(s) Completed, Editorial Evaluation Pending
15 Sep 2023Reviewer(s) Assigned
30 Sep 2023Editorial Decision: Accept