The open nature of the wireless medium renders it weak to intentional inference attacks, typically known as jamming. Jamming attack is considered as a serious threat to the wireless communications. Reactive jamming amplifies the attack potency by jamming only when the targets are communicating, which can be easily implemented using software defined radio. The intentional intervention with wireless transmission can be used as a launch pad for increasing Denial-of-Service attacks on wireless networks. Jamming is well-known reliability threat for mass-market wireless networks. With the increase in safety-critical systems this will be possible to become a constraining issue in the future. Thus, the design of accurate jamming detection algorithms becomes critical to react to existing jamming attacks. With regards to experimental work, jamming detection has been mainly examined for sensor networks. Generally, jamming has been addressed as external threat model. However, adversary with internal knowledge of protocol condition and network secret can start low – effort jamming attacks that are hard to detect and counter. In this paper we discuss various methods of detecting the jamming attacks and methods to prevent them.
Jamming; Attacks; Collision; Signal Strength; Packet Delivery Ratio
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