Differential STBC MIMO-OFDM System with Cyclic Delay Diversity for Mobile Multimedia Communication Systems

2007 ◽  
Author(s):  
Yoon Hyun Kim ◽  
Jin Young Kim
Keyword(s):  
Communication Systems ◽  
Multimedia Communication ◽  
Mobile Multimedia ◽  
Ofdm System ◽  
Cyclic Delay Diversity ◽  
Multimedia Communication Systems ◽  
Mimo Ofdm ◽  
Delay Diversity

A Scaled Cyclic Delay Diversity Based Precoding for Coded MIMO-OFDM System

2019 ◽  
Vol 68 (6) ◽  
pp. 5723-5731 ◽  
Author(s):  
Sanggeun Lee ◽  
Hoondong Noh ◽  
Chungyong Lee
Keyword(s):  
Ofdm System ◽  
Cyclic Delay Diversity ◽  
Mimo Ofdm ◽  
Delay Diversity

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.

Silence detection for multimedia communication systems

1999 ◽  
Vol 7 (2) ◽  
pp. 157-164 ◽  
Author(s):  
Stephen Jacobs ◽  
Alexandros Eleftheriadis ◽  
Dimitris Anastassiou
Keyword(s):  
Communication Systems ◽  
Multimedia Communication ◽  
Multimedia Communication Systems
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