Dynamic Bandwidth Management and Information Protection in Service Channels of Non-Stationary Objects
- Resource Type
- Conference
- Authors
- Chilikhin, Nikolay; Karpukhina, Elena; Kutuzov, Vladislav
- Source
- 2022 24th International Conference on Digital Signal Processing and its Applications (DSPA) Digital Signal Processing and its Applications (DSPA), 2022 24th International Conference on. :1-5 Mar, 2022
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Robotics and Control Systems
Signal Processing and Analysis
Codes
Dynamics
Bandwidth
Communication channels
Switches
Resource management
Polar codes
autonomous monitoring systems
bandwidth
Bhattacharyya distance
channel coding
control channel
industrial Internet
information protection
IoT
polar codes
5G
- Language
The paper is devoted to development and integration of the dynamic method of bandwidth management in service (control) communication channels for non-stationary objects. Polar codes (PC) were chosen as a scheme to combat interference in communication channels. Firstly, polar codes allow us to achieve the asymptotically possible bandwidth of a binary channel without memory. Secondly, they have the opportunity to freely choose the required code distance within the framework of the Hamming metric. The Bhattacharyya distance (BD) is used to provide the second advantage. This is a universal mechanism for determining the weight of a matrix row in a common generating matrix for the subsequent allocation of the most “strong/significant” matrix rows and the construction of any code vectors. It is important to note that the paper does not use the classical scheme for determining the likelihood ratio logarithm (LLR) but a modified one. For this purpose, there are used properties of the erasing communication channel (a wide erasure interval), integer values of the likelihood ratio logarithm to minimize computational costs (leveling time delays) and the assumption that the scope of variation changes quasi-linearly in the case of mathematical expectation. The paper describes the switching modes and the mechanism of bandwidth management that is determined by the tasks facing the designer and the operator of the communication system. Simulation was performed on FPGA Xilinx Artix-7 XC7A100T.