Traversable wormholes have traditionally been viewed as intrinsically topological entities in some multiply connected spacetime. Here, we show that topology is too limited a tool to accurately characterize a generic traversable wormhole: in general one needs geometric information to detect the presence of a wormhole, or more precisely to locate the wormhole throat. For an arbitrary static space...

Ad hoc networks are made of a group of portable terminals with wireless transmitter as multi-hops provisional autonomy system. Ad hoc networks are very easy to be attacked by various kinds of network attacks, as the limited resources, dynamic topology and open communication channel and so on. Wormhole attack is an internal attack means against routing protocols in the Ad hoc networks,The resear...

Neighbor discovery is an important part of many protocols for wireless adhoc networks, including localization and routing. When neighbor discovery fails, communications and protocols performance deteriorate. In networks affected by relay attacks, also known as wormholes, the failure may be more subtle. The wormhole may selectively deny or degrade communications. In this article we present Mobil...

In this paper, performance of multistage interconnection network with wormhole routing and packet switching has been evaluated for cache-coherent shared-memory multiprocessors. The traac in cache-coherent systems is characterized by traac bursts, one-to-many and many-to-one traac, and small xed length messages. The evaluation is based on execution-driven simulation using various applications. T...

Wireless sensor networks are now widely used in many areas, such as military, environmental, health and commercial applications. In these environments, security issues are extremely important since a successful attack can cause great damage, even threatening human life. However, due to the open nature of wireless communication, WSNs are liable to be threatened by various attacks, especially des...

We use the Gu-Huang model for a special case when the universe is seven dimensional. In the core of the extra dimension we place a modified Gidding-Strominger wormhole. This wormhole is separated by a thin wall from the extra dimensional space. The wormhole content is assumed to satisfy the adiabatic gas law. The wormhole pressure penetrates into the extra dimension. We then solve the Einstein ...

It is by now apparent that topology is too crude a tool to accurately characterize a generic traversable wormhole. In two earlier papers we developed a complete characterization of generic but static traversable wormholes, and in the present paper extend the discussion to arbitrary time-dependent (dynamical) wormholes. A local definition of wormhole throat, free from assumptions about asymptoti...

Routing attacks are a major challenge in the process of designing of effective and robust security mechanisms for WSNs. This research work proposes a distributed wormhole detection algorithm called Wormhole Geographic Distributed Detection (WGDD), that is based on detecting disorder of the networks which is caused by the existence of a wormhole inside the network.

We consider the use of wormhole routed networks as internal interconnects of switches. The interconnection of two wormhole networks that are free from deadlocks does not necessarily produce a deadlock free network. This is problematic when wormhole networks are used as switch-internal fabrics, because it severely restricts the possibilities for coupling the switches together. This paper present...