IEEE 802.15.4 based devices are a key component for mobile and pervasive computing. However, their small dimensions and reduced resources, together with the intrinsic properties of wireless communication, make it difficult to evaluate such networked systems through realworld trials. In this paper we present an emulation testbed intended for the evaluation of IEEE 802.15.4 networked systems. The...

In this paper we describe the digital emulation of a optical photosonic instrument. First we briefly describe the optical instrument which is the basis of this emulation. Then we give a musical description of the instrument implementation and its musical use and we conclude with the "duo" possibility of such an emulation.

Humans excel at mirroring both others' actions (imitation) as well as others' goals and intentions (emulation). As most research has focused on imitation, here we focus on how social and asocial learning predict the development of goal emulation. We tested 215 preschool children on two social conditions (imitation, emulation) and two asocial conditions (trial-and-error and recall) using two tou...

In this paper the performance of INET’s emulation mode is evaluated. In particular, the focus of the study is on the precision of the delay emulation. It is shown, that this precision is low in INET 2.6 (respectively a later version provided in the integration branch that fixed the crashes of 2.6 in emulation mode). Two errors in the implementation are identified and an alternative configuratio...

The (asymptotic) degree distributions of the best known “scale free” network models are all similar and are independent of the seed graph used. Hence it has been tempting to assume that networks generated by these models are similar in general. In this paper we observe that several key topological features of such networks depend heavily on the specific model and the seed graph used. Furthermor...

Network emulation environments are a valuable research tool that offer the possibility of conducting complex network experiments and can be seen as an enabler of experimental reproducibility. Keen to quantify this approach, we reproduce experiments presented in QJump [1] in the timecontrolled network emulation framework, called SELENA [2]. We first describe in detail how we built the experiment...

EfJicient emulations provide general methods to convert algorithms designed on a network into algorithms on smaller networks (with the same interconnection structure). In this paper, an optimal emulation for trees is proposed. With a slight modijcation, our emulation can be applied to X-trees without loss any epciency. By the strategy of our emulation, optimal emulations for m-ary frees and pyr...