Given a mobility pattern that entails intermittent wireless ad hoc connectivity, what is the best message delivery ratio and latency that can be achieved for a delay-tolerant routing protocol? We address this question by introducing a general scheme for deriving the routing latency distribution for a given mobility trace. Prior work on determining latency distributions has focused on models whe...

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 ...

Understanding intercity mobility patterns is important for future urban planning, in which the intensity of indicates degree integration development. This study investigates Greater Bay Area (GBA) China. The proposed workflow starts by analyzing characteristics, proceeds to model spatial-temporal heterogeneity structures, and then identifies patterns. We first conduct a complex network analysis...

BACKGROUND Preventing mobility disability depends on matching interventions to individual needs. The purpose of this study is to improve targeting by determining whether mobility performance is associated with, and predicts, mobility disability hierarchically. The hypothesis is that poorer performance tested by more demanding tasks is more strongly associated with current and future mobility "l...

Mobility management in ad hoc wireless networks faces many challenges. Mobility constantly causes the network topology to change. In order to keep accurate routes, the routing protocols must dynamically readjust to such changes. Thus, routing update traffic overhead is significantly high. Different mobility patterns have in general different impact on a specific network protocol or application....

Mobility plays a major role in mobile ad hoc networks (MANETs), since it stresses networking tasks such as routing on the one hand, but aids to increase the network capacity and to overcome network partitioning on the other hand. To benefit from node mobility, a new class of MANET protocols and applications are designed to be delay-tolerant and mobilityaided. The main communication paradigm her...

Ad Hoc Networks is a multi hop wireless network with dynamically changing network connectivity owing to mobility. It consists of a collection of wireless mobile nodes it will act without the use of any existing infrastructure or centralized administration. With this flexibility, networks can be formed anywhere, at any time, as long as two or more wireless users are willing to communicate. In su...