GPS plays a vital role in achieving navigation where cellular network devices are unable to provide continuous connectivity and services. Due to the exposed nature of GPS (global positioning system), it can be easily attacked by various jamming techniques. All of us know that GPS Jamming can cause Denial-of-Service which might result in a high-security issue.
The following are GPS jamming & anti-jamming techniques that you must read to quickly overcome denial of service issues to ensure a seamless navigation system.
1. Reactive RTS/CTS Jammer
It is a reactive type of jammer that sends a request-to-send (RTS) message to starts jamming the channel of the navigation system. As soon as the RTS is sent it becomes distorted and the receiver is not able to send back a clear-to-send (CTS) reply. It shows that the receiver is busy with another transmission. It allows jammers to wait until the RTS has received to jams the receiver. In nutshell, the sender is not able to send data but the receiver waits for the incoming packet.
2. Follow-On Jammer
It works overall available navigation system very frequently to jams each channel for a specific time period. In case a transmitter catches the jammer in any channel, the follow-on jammer will automatically start hunting for a new frequency to jam the new channel of the targeted navigation system. The GPS Anti-Jam technology saves power by minimizing its attack to a single frequency before targeting another. This type of jammer is a more powerful technique because of its high-frequency hopping rate that works to spread the spectrum.
3. Channel-Hopping Jammer
It is an advanced type of function-specific jammer that works on different channels proactively. This jammer directly accesses the frequency that is active over the MAC layer. Channel-Hopping Jammer can jam multiple frequencies at once. In the discovery phase, the jammer is invisible so it starts attacking different channels. Through invisible characteristics, this jammer can easily disturb the network as well as continuously monitor the channel activities.
4. Reactive Data/ACK jammer
It jams the navigation system by corrupting the data packets. It does not attack until a data transmission starts on the other end. This jammer can corrupt data when it reaches the receiver. The corruption of data packets halts the transmissions at the sender end. In this way, the data packets are not received appropriately at the receiver side. When the navigating system does not receive data so it believes something is wrong at the other end.
5. Implicit Jamming Attack
This type of jammer disables the functionality of the targeted frequency. It showcases the sign of denial-of-service state at the end-user network. This attack exploits the navigation system as well as disturbs the frequency of the targeted channel. Due to this process, it takes more time to attack and jams the target.
Final Thoughts
In the end, we can conclude now that the above information is best for people who want to learn about jamming attacks. A navigation system jammer or blocker targets transmits signals of the same frequencies to disrupt the process.
