التفاصيل البيبلوغرافية
| العنوان: |
Robust transmission design for artificial noise aided multiuser broadcast system in inaccurate channel state information scenario with users of different importance. |
| المؤلفون: |
Yao, Li1 (AUTHOR), Liu, Youjiang2 (AUTHOR) liuyj04@163.com, Zhang, Jian3 (AUTHOR), He, Yudong2 (AUTHOR) |
| المصدر: |
IET Communications (Wiley-Blackwell). 1/15/2023, Vol. 17 Issue 2, p171-182. 12p. |
| مصطلحات موضوعية: |
*MULTIUSER computer systems, *SEARCH algorithms, *MATHEMATICAL optimization, COMPUTATIONAL complexity, BEAMFORMING, COMPUTER simulation, NOISE |
| مستخلص: |
In this article, robust beamforming (BF) and artificial noise (AN) design method is proposed for multiuser broadcast secure transmission under secrecy outage probability (SOP) constraints. A special scenario is assumed that the transmitter cannot obtain the accurate channel state information (CSI) of the users' channel, and different users have different priorities and importance. This special scenario makes traditional BF algorithms and AN design methods unable to guarantee the effective and secure transmission of information. To deal with intractable non‐convex problems in this new design, a series of optimization methods like Bernstein‐type inequality (BTI) and S‐Procedure are employed to transform these problems into solvable functions. Moreover, a search algorithm is explored for simplifying the computational complexity of the optimization algorithm. After that, the new robust algorithm is compared with former methods in inaccurate CSI scenarios by numerical simulation, which shows the advantages of our algorithm. [ABSTRACT FROM AUTHOR] |
|
Copyright of IET Communications (Wiley-Blackwell) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Business Source Index |
Full Text Finder