LDPC codes for physical layer security
Journal Title: Vojnotehnički glasnik - Year 2018, Vol 66, Issue 4
Abstract
Wireless communication is ubiquitous in today's society. Unfortunately, wireless transmission is by the nature of broadcasting suitable for eavesdropping. These links are usually secured by encryption protocols that rely on cryptographic algorithms whose security is based on complexity of calculation and inability to calculate in real time. The hypothesis in the field of information theory is that the eavesdropper has unlimited computer capabilities, and the use of common cryptographic protocols is uncertain. Instead, it is assumed that the legitimate recipient of the message has a better communication channel than the intrusion listening. Based on this physical advantage, it is possible to use random encoding schemes for the transmission of information at the physical level. These schemes function without the prior exchange of secret keys securely, so protection at this layer tends to significantly simplify key management in communication systems. At the end of the last and the beginning of this century, there was an idea that LDPC codes should be applied to protect data at the physical layer. In this paper, the Wyner model of the communication channel was used, and LDPC codes were constructed for the transmission of information through this channel. A comparison of the basic algorithm and its modification was made based on the following parameters: transmission of mutual information, bit-error rate and execution time. An algorithm for different sizes of LDPC codes was also performed based on the above parameters.
Authors and Affiliations
Sonja Kuljanski Marić
Keywords
Related Articles
- EP ID EP410855
- DOI 10.5937/vojtehg66-14776
- Views 143
- Downloads 0
Structure and properties of Ni22Cr10Al1Y coatings deposited by the vacuum plasma spray process
In this study, the aim was to deposit layers of the Ni22Cr10Al1Y coating using the vacuum plasma spray process to protect gas turbine engine components from oxidation and high-temperature corrosion. The coating can signi...
Call for papers for issue 4-2017
The instructions to authors about the article preparation for publication in the Military Technical Courier are based on the Act on scientific journal editing of the Ministry of Science and Technological Development of t...
Table of obstacle course scoring results for Military Academy female cadets
This paper presents the creation of a table for obstacle course scoring results, for female cadets. The table is created based on the results obtained by female cadets during four years of studying at the Military Academ...
Constructions of squaring the circle, doubling the cube and angle trisection
The constructions of three classical Greek problems (squaring the circle, doubling the cube and angle trisection) using only a ruler and a compass are considered unsolvable. The aim of this article is to explain the orig...
On some known fixed point results in the complex domain: Survey
In this survey paper, we consider some known results from the fixed point theory with complex domain. The year 1926 is very significant for this subject. This is the beginning of the research and application of the fixed...