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IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 9, NO. 5, MAY 2010 1661 Mitigating Selective Forwarding Attacks with a
 

Summary: IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 9, NO. 5, MAY 2010 1661
Mitigating Selective Forwarding Attacks with a
Channel-Aware Approach in WMNs
Devu Manikantan Shila, Student Member, IEEE, Yu Cheng, Senior Member, IEEE,
and Tricha Anjali, Senior Member, IEEE
Abstract--In this paper, we consider a special case of denial of
service (DoS) attack in wireless mesh networks (WMNs) known
as selective forwarding attack (a.k.a gray hole attacks). With such
an attack, a misbehaving mesh router just forwards a subset of
the packets it receives but drops the others. While most of the
existing studies on selective forwarding attacks focus on attack
detection under the assumption of an error-free wireless channel,
we consider a more practical and challenging scenario that packet
dropping may be due to an attack, or normal loss events such as
medium access collision or bad channel quality. Specifically, we
develop a channel aware detection (CAD) algorithm that can
effectively identify the selective forwarding misbehavior from
the normal channel losses. The CAD algorithm is based on
two strategies, channel estimation and traffic monitoring. If the
monitored loss rate at certain hops exceeds the estimated normal

  

Source: Anjali, Tricha - Department of Electrical and Computer Engineering, Illinois Institute of Technology

 

Collections: Computer Technologies and Information Sciences; Engineering