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The emergence of vehicular-Ad-Hoc network and Vehicular Cloud Computing bring about potential for building powerful vehicular crowd-sensing system. Current research for modern crowd-sensing focuses on large scale applications such as urban sensing, public safety, traffic or environmental monitoring for governments or enterprises. Thus, to the best of our knowledge, there is no effort on extending...
Different with the sparseness of moving nodes in delay tolerant network (DTN), the mobile terminals with its short distance wireless interface can also be seen as mobile nodes, which were endowed as agents because of the social properties of their users. A self-organized agent picking (SOAP) network is established that the data with limited-copies can transfer across the SOAP network between random...
In mobile communication system, moving terminals have to switch to the network access points frequently due to the flexible mobility of Mobile Station (MS). How to provide an efficient low-cost and real-time service for MS is an important subject of mobility management. Different from the traditional static location management model, a novel dynamic model, based on prediction of users behavior, is...
In MANETs, link failures are caused frequently due to node's mobility and use of unreliable wireless channels for data transmission. Multipath routing strategy can cope with the problem of the traffic overloads while balancing the network resource consumption. This article proposes an improved approach named DNDR (Dual Node-Disjoint Paths Routing) to enhance the network reliability and robustness...
Currently, the development of urban slow traffic information services is lagging. Numerous issues, such as the lack of traffic information and deficient information dissemination, restrict the technical and economic development, of such systems. So it is critical and crucial to develop information services for urban pedestrian and bicycle systems. In this paper, a smartphone-based information platform...
The frequency resource of mobile communication systems is intensive and it needs to combine with cognitive radio technology. The mobile telecommunication system subscribers are sensitive to interference, making the interference problem need prompt solution. This paper analyzes the inter-system and intra-system interference and proposes the approach of utilizing spectrum holes classification. The spectrum...
An important mechanism to conserve energy and extend the battery life of low-power wireless networks is to increase the sleep-cycle of the nodes. However, increasing sleep-cycles can have unintended consequences on the application performance. Therefore, it is important to understand the impact of various sleep-cycle parameters on the performance of any given application. In this paper, we analyze...
Many real-world applications for sensor networks require event sampling with sufficient resolution over both spatial and temporal dimensions. When the deployed nodes are insufficient to fully cover the sensor field to satisfy this spatiotemporal sampling requirements of all events, nodes with intelligent mobility are crucial to improve the sampling quality. We measure the sampling quality using a...
In a large-scale mobile gaming environment with limited wireless network bandwidth, efficient mechanisms for state update are crucial to allow graceful real-time interaction for a large number of players. By using the state updating threshold as a key parameter that bridges the resulting state distortion and the network traffic, we are able to study the fundamental traffic-distortion tradeoffs via...
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