Abstract:
A computer network is described as two or more devices connecting and
communicating, each known as a computer network. These types of networks work on wired and
wireless mediums. A sort of transmission medium is wired communications, also referred to as
directed media. This form of communication is more reliable than wireless since it is the most
stable. In wired communication, twisted pair cable, coaxial cable, and fiber optic cable are used
to send data from the source to the destination. Wireless communication is also called "unguided"
or "unrestricted" transmission media. In this mode, no physical medium is required to transmit
electromagnetic signals. On the other hand, in wireless communication, a message can transfer
through the air, water, or vacuum, i.e., infrared, radio, and microwave waves. Therefore, this
research mainly focuses on wireless communication using radio frequency technology. This
technology is also used on TVs, radios, laptops, modems, mobile phones, and pagers. People
constantly interact with this technology in the modern world, and all these people have secure
data and confidential information. However, in this case, someone uses this technology and tries
to get the data illegally. It is a big problem for all civilians and the government. In this situation,
a network jammer device can be used to protect those data from snooping attempts, location
tracking, limiting cell phone activity, and cheating. This paper describes a low-cost network
jammer that uses an Arduino and an RF 433 MHz module to create a frequency between
315 MHz and 433 MHz. It uses the denial-of-service technique to prevent illegal activities within
a 100-meter range.
