Performance of Orthogonal Frequency Division Multiplexing Based Advanced Encryption Standard

• Main Authors: Truong, Duc-Tai, Nguyen, Quoc-Tuan, Dinh, Thai-Mai Thi
• Format: Article
• Language: English
• Published: H. : ĐHQGHN 2020
• Subjects: Orthogonal Frequency Division Multiplexing (OFDM); Advanced Encryption Standard (AES); Quadrature Amplitude Modulation (QAM); Authentication Key; Cellular Network; Encryption; Physical Layer; 4G; LTE
• Online Access: http://repository.vnu.edu.vn/handle/VNU_123/89098; https://doi.org/10.25073/2588-1086/vnucsce.240
• Institution: Vietnam National University, Hanoi

Currently, there are a lot of secure communication schemes have been proposed to hide secret contents. In this work, one of the methods deploying encryption to cipher data is represented. The primary object of this project is applying Advanced Encryption Standard (AES) in communications based Orthogonal Frequency Division Multiplexing (OFDM). This article discusses the security of the method encrypting directly QAM symbols instead of input bit-stream. This leads to improving the security of transmitting data by utilization of authentication key between the mobile and base station. The archived results demonstrate that the performance of the AES-OFDM system is completely acceptable to compare with the criteria for 4G.