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IEEE Transactions on Mobile Computing

Issue 11 • Nov. 2011

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Displaying Results 1 - 19 of 19
  • [Front cover]

    Publication Year: 2011, Page(s): c1
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  • [Inside front cover]

    Publication Year: 2011, Page(s): c2
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  • On the Throughput of MIMO-Empowered Multihop Cognitive Radio Networks

    Publication Year: 2011, Page(s):1505 - 1519
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2868 KB) | HTML iconHTML

    Cognitive radio (CR) and multiple-input multiple-output (MIMO) are two independent physical layer technologies that have made significant impact on wireless networking. CR operates on the channel/band level to exploit white space across spectrum dimension while MIMO operates within the same channel to improve spectral efficiency within the same band. In this paper, we explore MIMO-empowered CR net... View full abstract»

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  • Strictly Localized Sensor Self-Deployment for Optimal Focused Coverage

    Publication Year: 2011, Page(s):1520 - 1533
    Cited by:  Papers (47)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1326 KB) | HTML iconHTML

    We consider sensor self-deployment problem, constructing FOCUSED coverage (F-coverage) around a Point of Interest (POI), with novel evaluation metric, coverage radius. We propose to deploy sensors in polygon layers over a locally computable equilateral triangle tessellation (TT) for optimal F-coverage formation, and introduce two types of deployment polygon, H-polygon and C-polygon. We propose two... View full abstract»

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  • Sweep Coverage with Mobile Sensors

    Publication Year: 2011, Page(s):1534 - 1545
    Cited by:  Papers (46)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1105 KB) | HTML iconHTML

    Many efforts have been made for addressing coverage problems in sensor networks. They fall into two categories, full coverage and barrier coverage, featured as static coverage. In this work, we study a new coverage scenario, sweep coverage, which differs with the previous static coverage. In sweep coverage, we only need to monitor certain points of interest (POIs) periodically so the coverage at e... View full abstract»

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  • Model and Protocol for Energy-Efficient Routing over Mobile Ad Hoc Networks

    Publication Year: 2011, Page(s):1546 - 1557
    Cited by:  Papers (32)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1011 KB) | HTML iconHTML

    Many minimum energy (energy-efficient) routing protocols have been proposed in recent years. However, very limited effort has been made in studying routing overhead, route setup time, and route maintenance issues associated with these protocols. Without a careful design, an energy-efficient routing protocol can perform much worse than a normal routing protocol. In this paper, we first show that th... View full abstract»

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  • Optimal Resource Allocation for Pervasive Health Monitoring Systems with Body Sensor Networks

    Publication Year: 2011, Page(s):1558 - 1575
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1916 KB) | HTML iconHTML

    Pervasive health monitoring is an eHealth service, which plays an important role in prevention and early detection of diseases. There are two major challenges in pervasive health monitoring systems with Body Sensor Networks (BSNs). The first challenge is the sustainable power supply for BSNs. The second challenge is Quality of Service (QoS) guarantee for the delivery of data streams. In this paper... View full abstract»

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  • BUBBLE Rap: Social-Based Forwarding in Delay-Tolerant Networks

    Publication Year: 2011, Page(s):1576 - 1589
    Cited by:  Papers (477)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1780 KB) | HTML iconHTML

    The increasing penetration of smart devices with networking capability form novel networks. Such networks, also referred as pocket switched networks (PSNs), are intermittently connected and represent a paradigm shift of forwarding data in an ad hoc manner. The social structure and interaction of users of such devices dictate the performance of routing protocols in PSNs. To that end, social informa... View full abstract»

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  • Investment and Pricing with Spectrum Uncertainty: A Cognitive Operator's Perspective

    Publication Year: 2011, Page(s):1590 - 1604
    Cited by:  Papers (70)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1496 KB) | HTML iconHTML

    This paper studies the optimal investment and pricing decisions of a cognitive mobile virtual network operator (C-MVNO) under spectrum supply uncertainty. Compared with a traditional MVNO who often leases spectrum via long-term contracts, a C-MVNO can acquire spectrum dynamically in short-term by both sensing the empty “spectrum holes” of licensed bands and dynamically leasing from t... View full abstract»

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  • Feedback-Based Closed-Loop Carrier Synchronization: A Sharp Asymptotic Bound, an Asymptotically Optimal Approach, Simulations, and Experiments

    Publication Year: 2011, Page(s):1605 - 1617
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2487 KB) | HTML iconHTML Multimedia Media

    We derive an asymptotically sharp bound on the synchronization speed of a randomized black box optimization technique for closed-loop feedback-based distributed adaptive beamforming in wireless sensor networks. We also show that the feedback function that guides this synchronization process is strong multimodal. Given this knowledge that no local optimum exists, we consider an approach to locally ... View full abstract»

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  • Recognizing Multiuser Activities Using Wireless Body Sensor Networks

    Publication Year: 2011, Page(s):1618 - 1631
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2605 KB) | HTML iconHTML

    The advances of wireless networking and sensor technology open up an interesting opportunity to infer human activities in a smart home environment. Existing work in this paradigm focuses mainly on recognizing activities of single user. In this work, we focus on the fundamental problem of recognizing activities of multiple users using a wireless body sensor network, and propose a scalable pattern m... View full abstract»

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  • Gossip-Enabled Stochastic Channel Negotiation for Cognitive Radio Ad Hoc Networks

    Publication Year: 2011, Page(s):1632 - 1645
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1297 KB) | HTML iconHTML Multimedia Media

    The presence of a predefined control channel in ad hoc wireless networks is a common assumption widely accepted by the research community. However, it may not always be the case in some future networking scenarios with high-network dynamics and strong user diversity, such as cognitive radio (CR) ad hoc networks. This paper investigates channel negotiation in CR ad hoc networks without a predefined... View full abstract»

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  • Photo Retrieval Based on Spatial Layout with Hardware Acceleration for Mobile Devices

    Publication Year: 2011, Page(s):1646 - 1660
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3719 KB) | HTML iconHTML

    A new photo retrieval system for mobile devices is proposed. The system can be used to search for photos with similar spatial layouts efficiently, and it adopts an image segmentation algorithm that extracts features of image regions based on K-Means clustering. Since K-Means is computationally intensive for real-time applications and prone to generate clustering results with local optima, parallel... View full abstract»

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  • IEEE Computer Society OnlinePlus Coming Soon to TMC

    Publication Year: 2011, Page(s): 1661
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  • Transactions on Computers EssentialSets Available

    Publication Year: 2011, Page(s): 1662
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  • CPS Handles the Details for you [advertisement]

    Publication Year: 2011, Page(s): 1663
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  • Distinguish yourself with the CSDP [advertisement]

    Publication Year: 2011, Page(s): 1664
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  • TMC Information for authors

    Publication Year: 2011, Page(s): c3
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  • [Back cover]

    Publication Year: 2011, Page(s): c4
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Aims & Scope

Mobile Computing, as proposed in this Transactions, focuses on the key technical issues related to (a) architectures, (b) support services, (c) algorithm/protocol design and analysis, (d) mobile environments, (e) mobile communication systems, (f) applications, and (g) emerging technologies.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Marwan Krunz
Kenneth VonBehren Endowed Professor
Site Co-Director, NSF BWAC Center
Dept. of Electrical & Computer Engineering
The University of Arizona
Tucson, AZ 85721, USA
krunz@email.arizona.edu

Associate Editor-in-Chief
Kevin Almeroth
Computer Science Department
Univ. of California, Santa Barbara, USA
almeroth@cs.ucsb.edu