Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7586
Title: Secure multiuser MISO communication systems with limited feedback link
Authors: Özbek, Berna
Özdoğan Şenol, Özgecan
Karabulut Kurt, Güneş
Keywords: Multiple antennas
Physical layer security
Quantized feedback
Reduced feedback link
Issue Date: Jun-2018
Publisher: Springer Verlag
Source: Özbek, B., Özdoğan Şenol, Ö., and Karabulut Kurt, G. (2018). Secure multiuser MISO communication systems with limited feedback link. Annales des Telecommunications/Annals of Telecommunications, 73(5-6), 381-390. doi:10.1007/s12243-018-0627-6
Abstract: Physical layer security is one of the promising techniques for the security of next-generation wireless systems. In this paper, we analyze the impact of the limited feedback link on the secrecy capacity for a system which includes a base station with multiple antennas, a single legitimate user selected from multiple active ones and multiple eavesdroppers. We propose to design a limited feedback link by reducing the feedback load and quantizing the channel state information (CSI) of legitimate users to establish a secure communication system. The feedback load is decreased with a self discrimination criterion at the legitimate users’ side while keeping the secrecy capacity constant. The best legitimate user is selected based on the quantized CSI through a limited feedback link. We also analyze the impact of CSI of eavesdroppers, which information may or may not be available at transmitter. In practical cases where eavesdroppers are passive and their location is not known by the transmitter, an artificial noise is used to disrupt their reception. When the CSI of eavesdroppers is known, the generalized singular value decomposition is applied. We illustrate the performance results of the proposed limited feedback link through the availability of CSI of eavesdroppers at the transmitter.
URI: https://doi.org/10.1007/s12243-018-0627-6
https://hdl.handle.net/11147/7586
ISSN: 0003-4347
0003-4347
Appears in Collections:Electrical - Electronic Engineering / Elektrik - Elektronik Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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