Copyright © 2021 by author(s) and Scientific Research Publishing Inc. Archived with thanks to Journal of Computer and Communications. 
This work is licensed under the Creative Commons Attribution International License (CC BY 4.0).
Except where otherwise noted, this item's license is described as Copyright © 2021 by author(s) and Scientific Research Publishing Inc. Archived with thanks to Journal of Computer and Communications. This work is licensed under the Creative Commons Attribution International License (CC BY 4.0).