In research on small mobile robots and biomimetic robots, locomotion ability remains a major issue despite many advances in technology. However, evolution has led to there being many real animals capable of excellent locomotion. This paper presents a “parasitic robot system” whereby locomotion abilities of an animal are applied to a robot task. We chose a turtle as our first host animal and des...

The random waypoint model (RWP) is one of the most widely used mobility models in performance analysis of ad hoc networks. We analyze two key properties of the RWP model in a given convex area: the stationary spatial distribution for the location of the node and the mean length of a leg (line between two waypoints). A general expression is given for the spatial node distribution in the form of ...

We present a new algorithm for lune-based β-skeletons for sets of n points in the plane, for β ∈ (2,∞], the only case when optimal algorithms are not known. The running time of the algorithm is O(n log n), which is the best known and is an improvement of Rao and Mukhopadhyay [10] result. The method is based on point location in monotonic subdivisions of arrangements of curve segments.

We present a method to compare computer generated images of a real scene to the corresponding photograph. The approach is based on a numerical comparison of luminance values. Ground-truth data was obtained by mapping the pixel values of the photograph to luminance values via point measurements obtained from an accurate luminance measurement device. We present results of this comparison performe...

This paper presents a UAV based remote sensing system for the detection of fawns in the meadows. There is a high demand because during pasture mowing many wild animals, especially roe deer fawns are killed by mowing machines. The system was tested in several real situations especially with differing weather and iluminating conditions. Its primary sensor is a lightweight thermal infrared camera....

A platform for the simulation of mobility functions (e.g., protocols, and application architectures) is presented. This platform, named RMPG, is based on the assumption that real humans exhibit considerable spatial and temporal regularity in their moves. We base our simulation environment on the random way-point algorithm incorporated in the ns tool. Using the Java-based RMPG we performed a ser...

Mobility is regarded as a network transport mechanism for distributing data in many networks. However, many mobility models ignore the fact that peer nodes often carried by people and thus move in group pattern according to some kind of social relation. In this paper, we propose one mobility model based on group behavior character which derives from real movement scenario in daily life. This pa...

In practice, wireless networks are deployed over finite domains, the level of mobility is different at different locations, and user mobility is correlated over time. All these features have an impact on the temporal properties of interference which is often neglected. In this paper, we show how to incorporate correlated user mobility into the interference and outage correlation models. We use ...