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In this paper, we develop a distributed algorithm to localize a network of robots moving arbitrarily in a bounded region. In the case of such mobile networks, the main challenge is that the robots may not be able to find nearby robots to implement a distributed algorithm. We address this issue by providing an opportunistic algorithm that only implements a location update when there are nearby robots...
In this paper, we provide a distributed algorithm to locate an arbitrary number of agents moving in a bounded region. Assuming that each agent can estimate a noisy version of its motion and the distances to the nodes in its communication radius, we provide a simple linear update to find the locations of an arbitrary number of mobile agents when they follow some convexity in their deployment and motion,...
The emerging Software-Defined Networking (SDN) concept aims at simplifying network management and control. SDN is envisioned as one of the core technologies for future wireless networks. However, such networks have inherent challenges, in particular mobility management (MM) and network selection, which require careful design in a centrally controlled SDNized network. In this paper, we propose a proactive...
This paper presents Moitree, the middleware of our Avatar platform for mobile cloud computing. Avatar leverages cloud resources to support fast, scalable, reliable, and energy efficient distributed computing over mobile devices. Each mobile device is augmented by an avatar, a per-user always-on software entity that resides in the cloud and acts as the surrogate of the mobile device, to the extent...
With the emergence of IOT, WSNs have become prevalent for many application areas such as smart city scenario, healthcare, weather monitoring and intelligent transport system etc. Due to their smaller infrastructure and limited energy resources, these networks are considered to be controlled and lossy networks. IP mobility management in such networks playing a crucial role for object tracking or to...
With more companies investing in analytics to obtain a competitive edge in the market, decision makers require better identification of valuable metrics from among their data and to be able to interpret those complex patterns more easily. The area of data mining has been heavily invested in by the research community; however there remains a gap between the visualization efforts of this newly mined...
Avatar is a system that leverages cloud resources to support fast, scalable, reliable, and energy efficient distributed computing over mobile devices. An avatar is a per-user software entity in the cloud that runs apps on behalf of the user's mobile devices. The avatars are instantiated as virtual machines in the cloud that run the same operating system with the mobile devices. In this way, avatars...
From last decade, the tremendous growth of cloud computing and advancement in wireless communication technology has increased the usage of portable devices and facilitated mobile users to take advantage of mobile cloud services. Conversely, the high communication costs and inferior performance of mobile Internet over wide-area cellular network access obstruct the mobile devices' capabilities in resource...
Sink Mobility is becoming popular due to excellent load balancing between nodes and ultimately resulting in prolonged network lifetime and throughput. A major challenge is to provide reliable and energy-efficient operations are to be taken into consideration for different mobility patterns of sink. Aim of this paper is lifetime maximization of Delay Tolerant Wireless Sensor Networks (WSNs) through...
This paper analyzes the balance and harmonization between two spectrum allocation models i.e. property rights and commons. It highlights the current regulatory approach towards migration to next generation wireless networks and proposes a balanced and fair approach for reform of spectrum policy.
The research in the domain of question answering systems is vast. Many Web based question answering systems provide users with long size paragraphs in response to questions. In this research work, we present a question answering system intended for mobile users using natural language annotations fulfilling their requirement of concise piece of information in response to queries. We describe a model...
The purpose of present study was to assess the role of interactive media in teaching learning process at higher education level. The study was descriptive in nature and therefore survey method was selected for the collection of data. To achieve the purpose a questionnaire of 35 questions for 200 students and 10 teachers of Virtual University of Pakistan was constructed. After reviewing the related...
Video streaming is a promising multimedia application and is gaining popularity over wireless/mobile communications. The quality of the video depends heavily on the type of content. The aim of the paper is threefold. First, video sequences are classified into groups representing different content types using cluster analysis based on the spatial (edges) and temporal (movement) feature extraction....
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