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Emerging wireless network and mobile computing enable user-generated mobile video streaming to be shared and consumed in a novel manner. The feature of shared wireless medium, multihop data forwarding, and time-varying channel quality seriously limits the quality of experience (QoE), partially owing to the lack of mechanisms for effectively utilizing multi-rate channel resources. However, the existing...
Opportunistic routing (OR) has been proposed as a viable approach to improve the performance of wireless multihop networks with lossy links. However, the exponential growth of the bandwidth-sensitive mobile traffic (e.g., mobile video streaming and online gaming) poses a great challenge to the performance of OR in term of bandwidth guarantee. To solve this problem, a novel mechanism is proposed to...
The popularity of smartphones -- small computers that run on battery power -- has exploded in the last decade. Unsurprisingly, power consumption is an overarching concern for mobile app developers, who are anxious to learn about power-related problems that are encountered by others. In this paper, we present an empirical study exploring the characteristics of energy-related questions posed in Stack...
This paper presents a collision-free path planning approach based on Bezier curve for a mobile manipulator with the endpoints restricted by the manipulator. Based on these candidate endpoints and the initial posture of mobile manipulator, a series of feasible Bezier paths are obtained with the constraints from velocity, acceleration and environment. And then the optimal collision-free path is determined...
Instead of the original wired IP networks, the mobile networks are used as the return channel in IP-QAM VOD system to take the advantage of their wireless data communication function and full coverage in cities. The mobiles are used as a virtual remoter of STB for demanding video programs and controlling their playing. The function of complex query for programs can be realized based on the mobile's...
The problem, such as low efficiency in discovering resource, high usage of network bandwidth, is caused by the frequent mobility of nodes in peer-to-peer network. A self-organizing routing model in mobile peer-to-peer base on dynamic region management is proposed by dint of our improved Meridian model. According to the mobility strength of nodes and introduction of dynamic management, the proposed...
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