Throughput and Stability Improvements of Slotted ALOHA Based Wireless Networks under the Random Packet Destruction DoS Attack

A random packet destruction Denial of Service (DoS) attacking signals are easy to mount and difficult to detect and prevent. The attacker does not need to pretend a legal user and able to shut down any Slotted ALOHA based wireless Ad Hoc and sensor networks successfully by reducing the throughput and stability. Since current anti-attack measures such as encryption, authentication and authorization cannot prevent these types of attacks, we propose the use of multiple power levels transmission system to mitigate the attacking signals. Through analysis and numerical examples we demonstrate that the multiple power levels transmission system can significantly improve the throughput and stability of Slotted ALOHA under the random packet destruction Denial of Service (DoS) attacking signals. The implementation of the multiple power levels transmission system is easy and can keep the system running, although current anti-attack measures such as encryption, authentication and authorization cannot prevent these types of attacks.