The coverage problem in wireless sensor networks (WSNs) can be generally defined as a
measure of how effectively a network field is monitored by its sensor nodes. This problem …

Simulation is one of the most powerful tools we have for evaluating the performance of
opportunistic networks (OppNets). In this paper, we focus on available tools and models …

Radio link quality estimation in Wireless Sensor Networks (WSNs) has a fundamental impact
on the network performance and also affects the design of higher-layer protocols. Therefore …

Network lifetime has become the key characteristic for evaluating sensor networks in an
application-specific way. Especially the availability of nodes, the sensor coverage, and the …

Localization is one of the fundamental problems in wireless sensor networks (WSNs), since
locations of the sensor nodes are critical to both network operations and most application …

We present empirical measurements of the packet delivery performance of the latest sensor
platforms: Micaz and Telos motes. In this article, we present observations that have …

Experimental studies have demonstrated that the behavior of real links in low-power
wireless networks (such as wireless sensor networks) deviates to a large extent from the …

Wireless spoofing attacks are easy to launch and can significantly impact the performance of
networks. Although the identity of a node can be verified through cryptographic …

Localization is one of the most challenging and important issues in wireless sensor networks
(WSNs), especially if cost-effective approaches are demanded. In this paper, we present …

Wireless networks are vulnerable to identity-based attacks, including spoofing and Sybil
attacks, which allows for many other forms of attacks on the networks. Although the identity …