Denial of Service Attacks in Wireless Networks: The Case of Jammers

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This is a very interesting survey paper about Jammers.

Abstract:
The shared nature of the medium in wireless networks
makes it easy for an adversary to launch a Wireless
Denial of Service (WDoS) attack. Recent studies, demonstrate
that such attacks can be very easily accomplished using off-theshelf
equipment. To give a simple example, a malicious node
can continually transmit a radio signal in order to block any
legitimate access to the medium and/or interfere with reception.
This act is called jamming and the malicious nodes are referred to
as jammers. Jamming techniques vary from simple ones based
on the continual transmission of interference signals, to more
sophisticated attacks that aim at exploiting vulnerabilities of the
particular protocol used. In this survey, we present a detailed
up-to-date discussion on the jamming attacks recorded in the
literature. We also describe various techniques proposed for
detecting the presence of jammers. Finally, we survey numerous
mechanisms which attempt to protect the network from jamming
attacks. We conclude with a summary and by suggesting future
directions.