Nodes in a mobile computing system are vulnerable to clone attacks due their mobility. In such attacks, an adversary accesses few network nodes, generates replication, then inserts this replication into the network, potentially resulting numerous internal attacks. Most existing techniques use central base station, which introduces several difficulties network's reliance on single point, while o...

This paper presents the node localization of static blind sensor nodes and the mobile anchor nodes. Each of the sensor nodes determines its own position by itself is localization. Obstacles blocking between the direct path, called as Non-Line-Of-Sight (NLOS), which causes NLOS error. The propagation of this error results in unreliable localization and significantly decreases localization accura...

Various advancement in wireless communication and electronics technologies have enabled the development of low cost, low-power, multifunctional sensor nodes that are small in size and are able to sense, process data and communicate with each other in short distances wirelessly. A continuous growth in both applications and interests of wireless sensor network have witnessed recent years. A brief...

In this paper, we propose a secure route optimization mechanism for network mobility management. By means of the mechanism, the Mobile Router securely proxies the care-of address for the Mobile Network Node. The Mobile Router sends a Binding Update directly to the Correspondent Node on behalf of the Mobile Network Node. The Binding Update binds the Mobile Network Node’s original address to the ...

Received signal strength-based localization systems usually rely on a calibration process that aims at characterizing the propagation channel. However, due to the changing environmental dynamics, the behavior of the channel may change after some time, thus, recalibration processes are necessary to maintain the positioning accuracy. This paper proposes a dynamic calibration method to initially c...

In this paper, we propose a pointer forwarding scheme with mobility-aware binding update in Hierarchical Mobile IPv6 networks. In the proposed scheme, a pointer chain between access routers (ARs) is established to reduce the binding update (BU) traffic to the mobility anchor point (MAP). In addition, the MN performs a binding update to the correspondent node (CN) depending on its mobility. Spec...

Ultra-wideband (UWB) is a widely used technology in wireless indoor positioning. However, Non-line-of-sight (NLOS) and complex multipath fading introduce positioning errors to the UWB system. In order alleviate influence of non-line-of-sight fading, channel-quality-evaluation-based method proposed this paper. method, qualities channel between unknown nodes anchor are evaluated by weighted equat...

Network alignment (NA) offers a comprehensive way to build associations between different networks by identifying shared nodes. While the majority of current NA methods rely on topological consistency assumption, which posits that nodes across typically have similar local structures or neighbors, we argue anchor nodes, play pivotal role in NA, face more challenging scenario is often overlooked....

Sensor networks are composed of a number of sensor nodes with limited resources and used in application such as environment monitoring and object tracking. This allows a situation where the adversary can compromise one sensor node, fabricate many replicas having the same identity (ID) from the captured node, and place these replicas back into strategic positions in the network for further malic...

Range-free localization algorithm continues to be an important and challenging research topic in anisotropic Wireless Sensor Networks (WSNs). Designing range-free localization algorithms without considering obstacles or holes inside the network area does not reflect the real world conditions. In this paper, we have proposed Detour Path Angular Information (DPAI) based sensor localization algori...