Enhanced MIMO Transmission Scheme for MB-OFDM System with Spatial Mode Selection

2006 ◽  
pp. 481-488
Author(s):  
Jae-Seon Yoon ◽  
Myung-Sun Baek ◽  
So-Young Yeo ◽  
Young-Hwan You ◽  
Hyoung-Kyu Song
Keyword(s):  
Mode Selection ◽  
Spatial Mode ◽  
Ofdm System ◽  
Transmission Scheme ◽  
Mimo Transmission

scholarly journals Adaptive Secure MIMO Transmission Mechanism against Smart Attacker

2020 ◽  
Vol 2020 ◽  
pp. 1-14 ◽  
Author(s):  
Xujun Shen ◽  
Qingchun Chen ◽  
Yulong Nie ◽  
Keming Gan
Keyword(s):  
Secure Communication ◽  
Transmission Probability ◽  
Adaptive Transmission ◽  
Transmission Scheme ◽  
Transmit Power ◽  
Adverse Conditions ◽  
Control Scheme ◽  
Mimo Transmission ◽  
Adaptive Power ◽  
Adaptive Transmit Power

The MIMO transmission against a smart attacker has recently been formulated as a noncollaborative game, in which both the MIMO transmitter and the malicious attacker try to maximize their predefined utilities. In this paper, by carefully analyzing the Nash Equilibrium (NE), we focus on the conditions, in which the gaming results incline to the malicious attacker instead of the MIMO transmitter. In this adverse case, it is highly desirable to develop an effective mechanism to suppress the attack intention by the attacker for better secure communication. Motivated by this, an adaptive secure MIMO transmission scheme was proposed to make the MIMO transmitter better resist malicious attackers in adverse channel conditions. Compared with the existing gaming-based strategy, not only the transmit power of the MIMO transmitter but also the transmission probability will be adjusted in the proposed adaptive secure transmission scheme. Our analysis results show that the proposed scheme can be regarded as a generalized adaptive transmission one, i.e., when the adaptive transmit power policy is enough to suppress the attack motivation, the proposed scheme will be reduced to the adaptive power control scheme; otherwise, both the adaptive transmit power and the adaptive probabilistic transmission can be employed to suppress the attack motivation. The analysis results confirm us that the proposed adaptive transmission scheme provides us a choice to enhance the secure MIMO transmission performance in adverse conditions.

scholarly journals Covert Communication in MIMO-OFDM System Using Pseudo Random Location of Fake Subcarriers

2016 ◽  
Vol 4 (1) ◽  
pp. 150-163 ◽  
Author(s):  
Rizky Pratama Hudhajanto ◽  
I Gede Puja Astawa ◽  
Amang Sudarsono
Keyword(s):  
Communication Systems ◽  
Orthogonal Frequency Division Multiplexing ◽  
Random Sequence ◽  
Multiple Input Multiple Output ◽  
Ofdm System ◽  
Transmission Scheme ◽  
Sensitive Data ◽  
Input Multiple Output ◽  
Mimo Ofdm ◽  
Random Location

Multiple-Input Multiple-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is the most used wireless transmission scheme in the world. However, its security is the interesting problem to discuss if we want to use this scheme to transmit a sensitive data, such as in the military and commercial communication systems. In this paper, we propose a new method to increase the security of MIMO-OFDM system using the change of location of fake subcarrier. The fake subcarriers’ location is generated per packet of data using Pseudo Random sequence generator. The simulation results show that the proposed scheme does not decrease the performance of conventional MIMO-OFDM. The attacker or eavesdropper gets worse Bit Error Rate (BER) than the legal receiver compared to the conventional MIMO-OFDM system.

scholarly journals Spatial-Mode Selection for the Joint Transmit and Receive MMSE Design

2004 ◽  
Vol 2004 (9) ◽  
Author(s):  
Nadia Khaled ◽  
Claude Desset ◽  
Steven Thoen ◽  
Hugo De Man
Keyword(s):  
Mode Selection ◽  
Spatial Mode ◽  
Selection For
Sign in / Sign up

Export Citation Format

Share Document