With the rapid development of mobile communication technology, trajectories humans are massively collected by Internet service providers (ISPs) and application (ASPs). On other hand, rising paradigm knowledge graph (KG) provides us a promising solution to extract structured "knowledge" from massive trajectory data. In this paper, we focus on modeling users' spatio-temporal mobility patterns bas...

An ad hoc wireless network is an infrastructureless network composed of mobile hosts. The primary concerns in ad hoc networks are bandwidth limitations and unpredictable topology changes. Thus, efficient utilization of routing packets and immediate recovery of route breaks are critical in routing and multicasting protocols. A multicast scheme, On-Demand Multicast Routing Protocol (ODMRP), has b...

An ad hoc wireless network is an infrastructureless network composed of mobile hosts. The primary concerns in ad hoc networks are bandwidth limitations and unpredictable topology changes. Thus, efficient utilization of routing packets and immediate recovery of route breaks are critical in routing and multicasting protocols. A multicast scheme, On-Demand Multicast Routing Protocol (ODMRP), has b...

With the increase in the popularity of mobile devices, WLAN infrastructure planning has become significant for maintaining desired quality of service. Movement pattern of the user plays a key role in maintaining quality of service. Mobility prediction involves predicting the mobile device’s next access point as it moves through the wireless network. In this paper, we propose a new method for fe...

Recently, with the wide increase use of mobile devices, users are using it to achieve different types of tasks like multimedia and internet services. Many studies have been introduced to identify user's behaviors. The most common factor is the location. By knowing user's locations, set of required tasks can be provided for user. Mobility prediction is to predict the user's next l...

We evaluate mobility predictors in wireless networks. Handoff prediction in wireless networks has long been considered as a mechanism to improve the quality of service provided to mobile wireless users. Most prior studies, however, were based on theoretical analysis, simulation with synthetic mobility models, or small wireless network traces. We study the effect of mobility prediction for a lar...

The recent advances in wireless communications require integration of multiple network technologies in order to satisfy the increasing demand of mobile users. Mobility in such a heterogeneous environment entails that users keep moving between the coverage regions of different networks, which means that a non-trivial vertical handoff scheme is required in order to maintain a seamless transition ...

With the explosion of wireless technologies, variable types of mobility are presented. To provide seamless communication and mobility management, IP based mobility management protocols are proposed. One of them, to provide inter/intra/inner vehicle communication, the vehicles’ mobility management is studied that called VANET (vehicular ad hoc network). However, the mobility of vehicular results...

Message routing is one of the major challenges in Mobile Delay Tolerant Networks (MDTNs) due to frequent and long-term network partitions. A number of routing protocols for MDTNs belong to the category of prediction-based routing protocols, which utilize the social encounter probability of nodes to guide message forwarding. However, these prediction-based routing protocols compromise the privac...

How can we obtain realistic mobility models? This has been a question that many researchers have attempted to answer, mostly by analyzing existing WLAN traces. But in the future, will user on-line behavior change with the introduction of new mobile services and devices? We aim to investigate this issue in our study. In this paper, we analyze the mobility of a subset of users different than the ...