Enhancing physical layer security of OFDM systems using channel shortening
Citation
Furqan, H., Hamamreh, J. ve Arslan, H. (2017). Enhancing physical layer security of OFDM systems using channel shortening. 28th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC). Montreal, Canada, October 08-13, 2017. https://dx.doi.org/10.1109/PIMRC.2017.8292335Abstract
This work presents a simple, spectral and power efficient scheme for providing secure OFDM communication system using channel shortening. The basic concept is to utilize a channel shortening technique, whose design is based on the channel of the legitimate user (Bob), in such a way that the length of the effective channel is made equal to or less than the cyclic prefix (CP) at Bob only, while the length of the effective channel at the illegitimate receiver (Eve) is greater than CP. Thus, this causes inter-symbol-interference (ISI), loss of orthogonality, and overall performance degradation at Eve. The simulation results show that the presented technique can provide a significant BER performance gap between Bob and Eve, and can provide Quality of Service (QoS) based security. The design is shown to be robust against channel imperfections and can provide spectral and power efficiency beside enhancing security.
Source
28th Annual IEEE International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)Collections
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