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This paper proposed an optimized strategy of the incentive mechanism for participatory sensing network on the basis of Sense Util which is our previous research work. For optimizing, the strategy considered the possibility of that some users actually cannot participate the current sensing task, so in order to avoid unnecessary energy and bandwidth consumption on server end, users were classified into...
This paper studies the encounter patterns and online connections of 76 users in an indoor location sharing and online interaction social network application, to seek underlying relationship between users' offline behaviors and online social behaviors. We create an indoor location and proximity-based mobile social network system called Find & Connect that collects and records current indoor location...
Location-based mobile applications such as Foursquare help bridge the gap between offline and online. People that we encounter and connect with around physical resources such as meetings, provide opportunities for extending our social networks. We investigate how social connections can be established and integrated with workplace resources using location through our application called Find & Connect,...
In wireless sensor networks (WSNs), coverage is a key factor of affection the lifetime of networks. In this paper, we study the coverage problem for network which is comprised of mobile sensor nodes with sensing radius r and communication radius R = 2r. For a possible movable redundant sensor, we present a coverage hole detection method (CHDM) by mathematic analysis, and then give a node mobility...
With growing popularity of social networks, people's locations are being used for providing rich mobile social services, mostly with outdoor positioning using GPS. We present a mobile social service deployed in an indoor office environment called “Nokia Find & Connect” (NF&C). In NF&C, employees' locations are tracked using Wi-Fi to efficiently find, reserve and manage office resources...
People are considered as important resources nowadays. When we are caught in some problem, how to find a direct or indirect friend, who is professional in the specific field, to help us is the key point. The popularity of social network provides a great platform for the solution of the problem through computer automation. Dijkstra is a classical algorithm for searching the shortest path between two...
In order to improve quality of service (QoS) of wireless environment in scene-based mobile social network service (mobile SNS), a novel prefetching method is proposed in this paper. Utilizing this method, prefetching decisions are made based on the relationship among users and access histories recorded in the client. When the user is viewing the scene or other components, client is allowed to prefetch...
After through the destructive strike of serious earthquake happened in Sichuan province had the mental health of people in disaster areas been downcast for quite a long time. To avoid this situation being worse, it's Post-Trauma Mobile Service (PTMS) that was launched and deployed to improve the status of people both in the physical and mental aspects. In this study, we will discuss a newly-issued...
With the development of mobile devices, researchers pay more and more attention to application software based on it. Currently, most animation making software is oriented for professional people, which are tedious and complex on operation. It is difficult for novices to understand the making animation process. Aimed at removing the complexity barrier and allowing nonprofessional users to create a...
In this paper, we propose an intelligent system to help people create customized icons on touch sensitive mobile devices. Users can create their own icons from one or multiple drawings in an intelligent and interactive way. The system could automatically combine several hand-drawn sketches or drawings to create new complex icons. We also provide one recommendation function to assist the creation process...
Fast handover protocol provides seamless handover in mobile IPv6 networks by reducing handover latency. One assumption in fast handover is that the MN (Mobile Node) or the network could know or predict the new AR (Access Router) before data transport from the previous AR to the MN is disrupted. In order to achieve this capability, the complexity of predicting the new AR and the diversity of the wireless...
Telephone traffic of busy hour is one of indicators of load capacity of telecommunication network, which has a significant meaning to dilate and modify the network. A good performance of predicting the monthly busy hour traffic load is cared about by the mobile operators. As a promising learning theory, support vector machine (SVM) has been studied and applied in a wide area, such as financial markets...
In 2008, a serious earthquake struck Sichuan province. Tens of thousands of people in disaster areas have suffered injuries both in physical and mental aspects. Thus, a Post-Trauma Mobile Service (PTMS) is launched and implemented in Sichuan province, which creates a new mode of long-distance psychological counseling service. This study discusses the comparisons between mobile-based and traditional...
The 5.12 Wenchuan earthquakes has not only caused great loss of lives and properties of people in disastrous area, but also has brought profound psychological trauma to the victims. A post-trauma mobile service (PTMS) is developed and implemented in Sichuan province which combines the psychological counseling knowledge and mobile Internet technology. The PTMS service creates a new mode for long distance...
One of the major problems of deploying RSVP in the mobile environment is called the advanceresourcereservation problem. If an RSVP reservation path is reserved in advance in the subnet that a mobile node will visit, the mobile node can continue its QoS session smoothly when it hands over to that subnet. However, if too many network resources are used for advance reservation, new QoS sessions originating...
To overcome the drawbacks of the mobile IPv6 protocol on handling local mobility management, IETF proposed the HMIPv6 protocol which introduces an intermediate mobility anchor point (MAP) to hide the movement of a mobile node within a local area. However, the MAP forms a bottleneck in the network since all the traffic destined for its served nodes has to go through it. Most research on HMIPv6 focuses...
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