Forced collision: Detecting wormhole attacks with physical layer network coding

Detecting Primary User Emulation Attacks in Cognitive Radio Networks via Physical Layer Network Coding

Primary user emulation (PUE) attacks on cognitive radio networks pose a serious threat to the deployment of this technique. Previous approaches usually depend on individual or combined received signal strength (RSS) measurements to detect emulators. In this paper, we propose a new mechanism based on physical layer network coding to detect the emulators. When two signal sequences interfere at th...

Physical Layer Network Coding

A main distinguishing feature of a wireless network compared with a wired network is its broadcast nature, in which the signal transmitted by a node may reach several other nodes, and a node may receive signals from several other nodes simultaneously. Rather than a blessing, this feature is treated more as an interference-inducing nuisance in most wireless networks today (e.g., IEEE 802.11). Th...

Detecting and Preventing the Wormhole Attacks in Wireless Sensor Network

A Wireless Sensor Network (WSN) is a collection of petite sensor terminals, capable of sensing and communication. Here topology is dynamic Node developments result in dynamic topology and cause link failures in an Ad-hoc. Here focusing on the using of packet scheduling technique for AODV (Ad Hoc on Demand Distance Vector) routing protocol by weight hop based scheduling in this paper. The transi...

Orthogonal Physical Layer Network Coding

Detecting Wormhole Attacks in Wireless Sensor Networks

Wormhole attacks can destabilize or disable wireless sensor networks. In a typical wormhole attack, the attacker receives packets at one point in the network, forwards them through a wired or wireless link with less latency than the network links, and relays them to another point in the network. This paper describes a distributed wormhole detection algorithm for wireless sensor networks, which ...