Location management is one of the most important issues in mobile computing. Location management consists of location updates, searches and search-updates. An update occurs when a mobile host changes location. A search occurs when a host wants to communicate with a mobile host whose location is unknown to the requesting host. A search-update occurs after a successful search, when the location i...

Video streaming over wireless network is challenging due to node mobility and high channel error rate. In this paper, we propose a joint server/peer, proxy-driven video streaming architecture to support high quality video streaming service over IEEE 802.11-based wireless networks. The video proxy tracks peer mobility pattern, coordinates among multiple senders and performs rate-distortion optim...

This study demonstrates that the easily synthesized N-heteroquinones, having unusual quadruple weak hydrogen bonds of a DDAA-AADD pattern, can function as n-type organic semiconductors in OTFTs with high electron mobility.

Nowadays as the world population has become more interconnected and is relying on faster transportation methods, simplified connections and shorter commuting times, we witness a rapid increase in human mobility. In this situation unveiling and understanding human mobility patterns have become a crucial issue to support decisions and prediction activities when managing the complexity of the toda...

A framework for thinking about intergenerational mobility as it relates to the relationship between parent and child incomes as well as evidence on the degree and sources of intergenerational mobility in Canada is reviewed. The major conclusion is that Canadian society is characterized by a good deal of intergenerational mobility, and the available evidence suggests that being raised in low-inc...

In the literature, scaling laws for wireless mobile networks have been characterized under various models of node mobility and several assumptions on how communication occurs between nodes. To improve the realism in the analysis of scaling laws, we propose a new analytical framework. The framework is the first to consider a Lévy flight mobility pattern, which is known to closely mimic human mob...

An efficient deployment of a mobile ad-hoc network (MANET) requires a realistic approach towards the mobility of the hosts who want to communicate with each other over a wireless channel. Since ad-hoc networks are driven by human requirements, instead of considering the random movement of mobile nodes, we concentrate on the social desire of the nodes for getting connected with one another and p...

Our goal is to characterize the access patterns in a IEEE802.11 infrastructure. This can be beneficial in many domains, including coverage planning, resource reservation, supporting location-dependent applications and applications with real-time constraints, and producing models for simulations. We conducted an extensive measurement study of wireless users and their association patterns on a ma...

Abstract We present an individual-based model for two interacting populations diffusing on lattices in which a strong natural selection develops spontaneously. The models combine traditional local predator-prey dynamics with random walks. Individual’s mobility is considered as an inherited trait. Small variations upon inheritance, mimicking mutations, provide variability on which natural select...

Sensor devices are used to collect the environment information. Wireless Sensor Network (WSN) is constructed with a set of data collection units. Base station, sinks and sensor devices are used in the WSN. Power resources, bandwidth and storages are the limitations of the sensor devices. Sink nodes are used to collect data from a group of sensor devices. Many to one traffic pattern based data c...