Seamless mobility management of the mesh clients (MCs) in wireless mesh network (WMN) has drawn a lot of attention from the research community. A number of mobility management schemes such as mesh network with mobility management (MEMO), mesh mobility management (M(3)), and wireless mesh mobility management (WMM) have been proposed. The common problem with these schemes is that they impose unif...

Mobile Ad hoc Networks are collection of mobile nodes forming an ad hoc network without any fixed centralized network. Actual problem of this network is rapid mobility i.e., Mobile nodes are frequently changing their position. Node mobility is one of the major parameters that affect the performance of routing protocols. In order to avoid this problem, Bird Flocking group mobility is combined wi...

This paper investigates the performance of a multihop radio access network. In our testbed, nodes communicate to one access point using IEEE 802.11b and AODV routing. We measure the average packet delay and delivery ratio, if the node movement is emulated employing the random waypoint and random direction model, respectively. We find that random waypoint mobility yields up to 100% better result...

In this paper, we seek to improve understanding of the structure of human mobility, with a view to using this for designing algorithms for the dissemination of data among mobile users. We analyse community structures and node centrality from the human mobility traces and use these two metrics to design efficient forwarding algorithms in terms of delivery ratio and delivery cost for mobile netwo...

Node mobility plays an important role in the routing performance for MANETs. Many protocols provide parameters to adapt to different levels of mobility, but this is a global optimization (i.e., typically all nodes choose the same parameter values and they use these parameters throughout their participation in a MANET). We choose the monitored number of link breaks as key mobility metric and obs...

BACKGROUND This analysis sought to determine the associations of the Foundation for the National Institutes of Health Sarcopenia Project criteria for weakness and low lean mass with likelihood for mobility impairment (gait speed ≤ 0.8 m/s) and mortality. Providing validity for these criteria is essential for research and clinical evaluation. METHODS Among 4,411 men and 1,869 women pooled from...

This paper addresses the capital mobility among regions within China. Using a range of panel estimators which deals with the non-stationarity of time series components, individual heterogeneity and common unobserved factors, we show that the savings and investment (both expressed as ratios to GDP) are positively correlated for a sample of 28 Chinese provinces over the period of 1978 to 2006. Ac...

Article history: Received 26 February 2009 Received in revised form 6 August 2009 Accepted 26 August 2009 This paper addresses the capital mobility among regions within China. Using a range of panel estimators which deals with the non-stationarity of time series components, individual heterogeneity and common unobserved factors, we show that the savings and investment (both expressed as ratios ...

We introduce a skewness-based approach to measure tax progression and demand for redistribution. We provide a political economy foundation for a novel measure of skewness by expressing key properties of the classical model of voting over income redistribution (Meltzer and Richard, 1981) and the Prospect Of Upward Mobility (POUM) mechanism (Bènabou and Ok, 2001), as well as the conventional noti...

The aging of the population in developed and developing countries calls for special attention to improve the quality of life for older people. Meanwhile, one of the key factors influencing the quality of life of older people is their mobility. Most of the previous studies have considered the mobility of younger people while considering the aging of the population, the mobility of older people n...