Confidential Data Transmission Using Subcarrier Randomization with RSA Algorithm for Synchronization on MIMO-OFDM System

Nihayatus Sa adah, I Gede Puja Astawa, Amang Sudarsono


In wireless communication, the transmitted information data is often intercepted by eavesdropper through fading channels. Since the signal is transmitted by the transmitter through a wireless channel, it is not only the authorized receiver but also the attacker or the eavesdropper can easily capture and store the information signal. This research examines the security methods in wireless communication, where the security method used is subcarrier randomization. In the receiver, the subcarrier position must be restored to its original position. To restore the subcarrier position to its original position there needs to be a synchronization between transmitter and receiver. We use RSA algorithm as synchronization between transmitter and receiver. Subcarrier randomization security method is implemented on Multiple Input Multiple Output - Orthogonal Frequency Division Multiplexing (MIMO-OFDM) system. We perform QoS measurements including delay, throughput and packet loss on MIMO-OFDM systems using security and MIMO-OFDM systems without security. From the results obtained, we can prove that the proposed security method does not degrade the performance of the MIMO-OFDM system. MIMO-OFDM system with security can result in smaller packet loss than the MIMO-OFDM system without security. MIMO-OFDM system with security has the average packet loss 0.145%.


MIMO-OFDM; subcarrier randomization; security; RSA; synchronization.

Full Text:



S. Aramvith and R. D. Cajote,â€Handbook of Research on Secure Multimedia Distributionâ€, ISBN-13: 978-1605662626 ,Pp. 211-240, Information Science Reference ,2009

I. G. P. Astawa, Y. Moegiharto, A. Zainudin, I. D. A. Salim, & N. A. Anggraeni, “Performance of MIMO-OFDM using convolution codes with QAM modulationâ€, Proc. SPIE 9159, Sixth International Conference on Digital Image Processing (ICDIP), 2014.

L. Kansal, A. Kansal, K. Singh, “Performance Analysis of MIMO-OFDM System Using QOSTBC Code Structure for M-PSKâ€, Canadian Journal on Signal Processing, vol.5, no. 2, May 2011.

Pathak, Neha. "OFDM (Orthogonal Frequency Division Multiplexing) Simulation Using MatLab." International Journal of Engineering Research and Technology. Vol. 1. No. 6 (August-2012). ESRSA Publications, 2012.

W.Stalling, “Network Security Essentials: Applications and Standardsâ€, Fourth edition, Prentice-Hall, Inc., 2011.

S.Gupta and C.Kumar, “Shared Information Based Security Solution for Mobile Ad Hoc Networksâ€, international Journal of wireless & mobile networks(IJWMN), Vol.2, No.1, February 2010, pp.176-187, 2010.

B.A. Forouzan, “Data Communications and Networkingâ€, McGraw-Hill, 4 th Edition.

W. Stallings, “Cryptography and etwork Security: Principles and Practiceâ€, Pearson Education/Prentice Hall, 5 th Edition.

Singh, Gurpreet. "A study of encryption algorithms (RSA, DES, 3DES and AES) for information security." International Journal of Computer Applications 67.19 (2013).

Singhal, Nidhi, and J. P. S. Raina. "Comparative analysis of AES and RC4 algorithms for better utilization." International Journal of Computer Trends and Technology 2.6 (2011): 177-181.

Vincent, PM Durai Raj, and E. Sathiyamoorthy. "A novel and efficient public key encryption algorithm." International Journal of Information and communication technology 9.2 (2016): 199-211.

Zhang, Xiaozhong, et al. "A secure OFDM transmission scheme based on chaos mapping." Computing and Communications Conference (IPCCC), 2015 IEEE 34th International Performance. IEEE, 2015.

R.P. Hudhajanto, I.G.P. Astawa, and A. Sudarsono. "Covert Communication in MIMO-OFDM System Using Pseudo Random Location of Fake Subcarriers." EMITTER International Journal of Engineering Technology 4.1 (2016): 150-163.

I. Hen, "MIMO Architecture for Wireless Communication", in Intel Technology Journal, vol.10, issue02, May 2006.

Rohde and Schwarz, "Introduction to MIMO Systems", Munchen, 2006.

Y. S. Cho etc, â€MIMO-OFDM Wireless Communication with Matlab,†WILLEY, 2010.



  • There are currently no refbacks.

Published by INSIGHT - Indonesian Society for Knowledge and Human Development