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The combined effect of Moore's law and the failure of Den nard scaling have led to multi-core mobile devices with immense computation capabilities. The biggest limitation of the computation capability for any mobile device is its battery. Mobile cloud computing is used to offload compute intensive tasks that affect a mobile device's battery. Mobile ad-hoc computing can be used as an alternative to...
In a mobile ad hoc network, efficient routing, resource allocation, and energy management can be achieved through clustering of mobile nodes into local groups. In this paper we propose a clustering scheme that allows self-configuration and adaptation of the network, prolonging its lifetime by distributing energy consumption among clusters. A combined weighted metric approach is used to select cluster-head...
As mobile devices have become more powerful and ubiquitous in our daily life, sharing content objects among mobile platforms has become increasingly popular. Without the help of server infrastructures, clients usually form a mobile peer-to-peer (P2P) system as an ad-hoc network, and discover content objects by flooding query to neighboring peers. Such a flooding-based query method consumes communication...
Using proxy servers to cache and shape network traffic can significantly improve the energy efficiency of the participating mobile clients. In this paper, we analyze the implications of hosting a BitTorrent proxy on a broadband router, which pushes the content to a mobile phone over wireless radio (WLAN or 3G). The amount of memory in a router is limited and therefore our interest is on how to use...
Using proxy servers to cache and shape network traffic can significantly improve the energy efficiency of the participating mobile clients. In this article, we analyze the implications of hosting a BitTorrent proxy on a broadband router, which pushes the content to a mobile phone over wireless radio (WLAN or 3G). The amount of memory in a router is limited; therefore, our interest is in how to efficiently...
This paper presents a distributed proxy solution that enables energy efficient BitTorrent downloads for mobile devices. Instead of using a single proxy, this work focuses on using multiple proxy servers to achieve better bandwidth utilization and thus smaller mobile energy consumption. We present an analytical model that can be used to experiment with different proxy setup and evaluate them from the...
Using proxy servers to cache and shape network traffic can significantly improve the energy efficiency of the participating mobile clients. In this paper, we analyze the implications of hosting a BitTorrent proxy on a broadband router, which pushes the content to a mobile phone over wireless radio (WLAN or 3G). The amount of memory in a router is limited and therefore our interest is on how to use...
We investigated consumer attitudes towards energy consumption of mobile phones and mobile services with a questionnaire study among Finnish university students (N = 150). Our questions covered topics like how battery consumption affected phone and application selection and configuration, what effect different battery levels had on user behavior, what kind of recharging policies were used, how satisfied...
In this paper we investigate the DHT performance for Peer-to-peer SIP. We analyze performance from the mobile phone perspective. This angle brings battery consumption and efficient use of the limited resources of the mobile devices to the focus. We develop an analytical model of Kademlia DHT performance and use it to analyze a number of different strategies to use peer-to-peer SIP with mobile devices...
In this paper, we propose an effective filtering method for skyline queries in mobile ad hoc networks (MANETs). Skyline query processing is important since skyline objects show interesting points from a large data set according to multiple criteria. Most skyline researches about wireless ad hoc network focus on optimizing the energy consumption due to the limited resource. But, most existing researches...
Mobile devices provided with cellular and short-range radio network interface cards offer the user potentials for new communication paradigms based on a cooperative behavior. The idea is that devices in close proximity exchange, through available short-range links, complementary shares of information downloaded from the cellular connections. Results in the literature have proven equal benefits for...
This paper presents a novel mechanism that enables mobile devices to efficiently participate in Distributed Hash Tables (DHTs). By selectively dropping messages, we can significantly reduce traffic and thus the energy consumption of mobile nodes with only minor performance degradation. The protocol extension preserves compatibility with existing widely used DHT systems. We evaluate the solution by...
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