MOBICOM

With the growing prevalence of sensor and wireless networks comes a new demand for location-based access control mechanisms. We introduce the concept of secure location verification, and we show how it can be used for location-based access control. Then,...

This paper considers the problem of using wireless LAN location-sensing for security applications. Recently, Bayesian methods have been successfully used to determine location from wireless LAN signals, but such methods have the drawback that a model ...

We investigate secure routing in ad hoc networks in which security associations exist only between a subset of all pairs of nodes. We focus on source routing protocols. We show that to establish secure routes, it is in general not necessary that ...

In an ad hoc network, mobile computers (or nodes) cooperate to forward packets for each other, allowing nodes to communicate beyond their direct wireless transmission range. Many of the proposed routing protocols for ad hoc networks operate in an on-...

The vision of nomadic computing with its ubiquitous access has stimulated much interest in the Mobile Ad Hoc Networking (MANET) technology. However, its proliferation strongly depends on the availability of security provisions, among other factors. In ...

In this work we design and implement ESCORT, a backward compatible, efficient, and secure access control system, to facilitate mobile wireless access to secured wireless LANs. In mobile environments, a mobile guest may frequently roam into foreign ...

Intermediary-based services and performance optimizations are increasingly being considered, by network service providers, with a view towards offering value-added services and improving the user experience of wireless mobile clients at reduced costs. ...

In Intrusion Detection Systems (IDSs) for Mobile Ad hoc NETworks (MANETs), IDS agents using local detection engines alone may lead to undesirable performance due to the dynamic feature of MANETs. In this paper, we present a nonoverlapping Zone-based ...

Recent results indicate scalability problems for flat ad hoc networks. To address the issue of scalability, self-organizing hierarchical ad hoc architectures are being investigated. In this paper, we explore the task of providing data and entity ...

The security of the current 3G wireless protocols addresses the problems faced by the 2G systems, in addition to fulfilling the higher 3G security requirements mandated from operating in IP networks as well as voice networks. However, the approach ...