Virginia Municipal League

Displaying 1-12 of 12 results

  • White Papers // Jan 2013

    Bundling Mobile Base Station and Wireless Energy Transfer: Modeling and Optimization

    Wireless energy transfer is a promising technology to fundamentally address energy and lifetime problems in a Wireless Sensor Network (WSN). On the other hand, it has been well recognized that a mobile base station has significant advantages over a static one. In this paper, the authors study the interesting problem...

    Provided By Virginia Municipal League

  • White Papers // Dec 2012

    Wireless Power Transfer and Applications to Sensor Networks

    Energy constraints are widely regarded as a fundamental limitation of wireless and mobile devices. For sensor networks, a limited lifetime due to battery constraint poses a performance bottleneck and barrier for large scale deployment. Recently, wireless power transfer has emerged as a promising technology to address energy and lifetime bottlenecks...

    Provided By Virginia Municipal League

  • White Papers // Dec 2012

    On Interference Alignment for Multi-Hop MIMO Networks

    Interference Alignment (IA) is a major advance in information theory. Despite its rapid advance in the information theory community, most results on IA remain point-to-point or single-hop and there is a lack of advance of IA in the context of multi-hop wireless networks. This paper is to make a concrete...

    Provided By Virginia Municipal League

  • White Papers // Dec 2012

    An Efficient DoF Scheduling Algorithm for Multi-Hop MIMO Networks

    Degree-of-Freedom (DoF)-based model is a simple yet powerful tool to analyze MIMO's Spatial Multiplexing (SM) and Interference Cancellation (IC) capabilities in a multi-hop network. Recently, a new DoF model was proposed and was shown to achieve the same rate region as the matrix-based model (under SM and IC). The essence...

    Provided By Virginia Municipal League

  • White Papers // Jul 2012

    Distributed Algorithms for Maximum Link Scheduling in the Physical Interference Model

    A fundamental problem in wireless networks is the maximum link scheduling problem. Constant factor approximation algorithms have been developed for this problem, but low complexity distributed algorithms that give the same approximation guarantee in the SINR model are not known. Distributed algorithms are especially challenging in this model, because of...

    Provided By Virginia Municipal League

  • White Papers // Jun 2012

    A Fast Distributed Approximation Algorithm for Minimum Spanning Trees in the SINR Model

    A fundamental problem in wireless networks is the Minimum Spanning Tree (MST) problem: given a set V of wireless nodes, compute a spanning tree T, so that the total cost of T is minimized. In recent years, there has been a lot of interest in the physical interference model based...

    Provided By Virginia Municipal League

  • White Papers // May 2012

    Cherish Every Joule: Maximizing Throughput With an Eye on Network-Wide Energy Consumption

    Conserving network-wide energy consumption is becoming an increasingly important concern for network operators. In this paper, the authors study network-wide energy conservation problem which they hope will offer insights to both network operators and users. In this paper, they study how to maximize throughput under a network-wide energy constraint. They...

    Provided By Virginia Municipal League

  • White Papers // Mar 2012

    Co-opetition and Technological Innovation in Small and Medium-Sized Enterprises: A Multilevel Conceptual Model

    Small and Medium-Sized Enterprises (SMEs) face tremendous challenges in their attempt to pursue technological innovations. This paper argues that co-opetition strategy - simultaneous pursuit of competition and collaboration - helps SMEs to develop their ability to effectively pursue technological innovations. The authors developed a multilevel conceptual model consisting of factors...

    Provided By Virginia Municipal League

  • White Papers // Feb 2012

    On Renewable Sensor Networks With Wireless Energy Transfer: The Multi-Node Case

    Wireless energy transfer based on magnetic resonant coupling is a promising technology to replenish energy to sensor nodes in a Wireless Sensor Network (WSN). However, charging sensor node one at a time poses a serious scalability problem. Recent advances in magnetic resonant coupling shows that multiple nodes can be charged...

    Provided By Virginia Municipal League

  • White Papers // Jan 2012

    Squeezing the Most Out of Interference: An Optimization Framework for Joint Interference Exploitation and Avoidance

    Interference is widely regarded as the fundamental impediment to throughput performance in wireless networks. There is a growing interest in exploiting interference (rather than avoiding it) to increase network throughput. In particular, the so-called Successive Interference Cancellation (SIC) scheme appears very promising, due to its ability to enable concurrent receptions...

    Provided By Virginia Municipal League

  • White Papers // Dec 2011

    Toward Simple Criteria to Establish Capacity Scaling Laws for Wireless Networks

    Capacity scaling laws offer fundamental understanding on the trend of user throughput behavior when the network size increases. Since, the seminal work of Gupta and Kumar, there have been active research efforts in developing capacity scaling laws for ad hoc networks under various advanced physical layer technologies. These efforts led...

    Provided By Virginia Municipal League

  • White Papers // Oct 2009

    Cognitive MIMO Radio: Incorporating Dynamic Spectrum Access in Multiuser MIMO Network

    In this paper, the authors develop a general mathematical framework to incorporate dynamic spectrum access in a multiuser MIMO network. This framework is particularly helpful in computing the maximum achievable system capacity of a resulting multiple-band multiuser MIMO network. The mathematical formulation to maximize the system capacity is shown to...

    Provided By Virginia Municipal League

  • White Papers // Dec 2011

    Toward Simple Criteria to Establish Capacity Scaling Laws for Wireless Networks

    Capacity scaling laws offer fundamental understanding on the trend of user throughput behavior when the network size increases. Since, the seminal work of Gupta and Kumar, there have been active research efforts in developing capacity scaling laws for ad hoc networks under various advanced physical layer technologies. These efforts led...

    Provided By Virginia Municipal League

  • White Papers // May 2012

    Cherish Every Joule: Maximizing Throughput With an Eye on Network-Wide Energy Consumption

    Conserving network-wide energy consumption is becoming an increasingly important concern for network operators. In this paper, the authors study network-wide energy conservation problem which they hope will offer insights to both network operators and users. In this paper, they study how to maximize throughput under a network-wide energy constraint. They...

    Provided By Virginia Municipal League

  • White Papers // Jul 2012

    Distributed Algorithms for Maximum Link Scheduling in the Physical Interference Model

    A fundamental problem in wireless networks is the maximum link scheduling problem. Constant factor approximation algorithms have been developed for this problem, but low complexity distributed algorithms that give the same approximation guarantee in the SINR model are not known. Distributed algorithms are especially challenging in this model, because of...

    Provided By Virginia Municipal League

  • White Papers // Jun 2012

    A Fast Distributed Approximation Algorithm for Minimum Spanning Trees in the SINR Model

    A fundamental problem in wireless networks is the Minimum Spanning Tree (MST) problem: given a set V of wireless nodes, compute a spanning tree T, so that the total cost of T is minimized. In recent years, there has been a lot of interest in the physical interference model based...

    Provided By Virginia Municipal League

  • White Papers // Jan 2013

    Bundling Mobile Base Station and Wireless Energy Transfer: Modeling and Optimization

    Wireless energy transfer is a promising technology to fundamentally address energy and lifetime problems in a Wireless Sensor Network (WSN). On the other hand, it has been well recognized that a mobile base station has significant advantages over a static one. In this paper, the authors study the interesting problem...

    Provided By Virginia Municipal League

  • White Papers // Oct 2009

    Cognitive MIMO Radio: Incorporating Dynamic Spectrum Access in Multiuser MIMO Network

    In this paper, the authors develop a general mathematical framework to incorporate dynamic spectrum access in a multiuser MIMO network. This framework is particularly helpful in computing the maximum achievable system capacity of a resulting multiple-band multiuser MIMO network. The mathematical formulation to maximize the system capacity is shown to...

    Provided By Virginia Municipal League

  • White Papers // Jan 2012

    Squeezing the Most Out of Interference: An Optimization Framework for Joint Interference Exploitation and Avoidance

    Interference is widely regarded as the fundamental impediment to throughput performance in wireless networks. There is a growing interest in exploiting interference (rather than avoiding it) to increase network throughput. In particular, the so-called Successive Interference Cancellation (SIC) scheme appears very promising, due to its ability to enable concurrent receptions...

    Provided By Virginia Municipal League

  • White Papers // Dec 2012

    On Interference Alignment for Multi-Hop MIMO Networks

    Interference Alignment (IA) is a major advance in information theory. Despite its rapid advance in the information theory community, most results on IA remain point-to-point or single-hop and there is a lack of advance of IA in the context of multi-hop wireless networks. This paper is to make a concrete...

    Provided By Virginia Municipal League

  • White Papers // Dec 2012

    An Efficient DoF Scheduling Algorithm for Multi-Hop MIMO Networks

    Degree-of-Freedom (DoF)-based model is a simple yet powerful tool to analyze MIMO's Spatial Multiplexing (SM) and Interference Cancellation (IC) capabilities in a multi-hop network. Recently, a new DoF model was proposed and was shown to achieve the same rate region as the matrix-based model (under SM and IC). The essence...

    Provided By Virginia Municipal League

  • White Papers // Dec 2012

    Wireless Power Transfer and Applications to Sensor Networks

    Energy constraints are widely regarded as a fundamental limitation of wireless and mobile devices. For sensor networks, a limited lifetime due to battery constraint poses a performance bottleneck and barrier for large scale deployment. Recently, wireless power transfer has emerged as a promising technology to address energy and lifetime bottlenecks...

    Provided By Virginia Municipal League

  • White Papers // Mar 2012

    Co-opetition and Technological Innovation in Small and Medium-Sized Enterprises: A Multilevel Conceptual Model

    Small and Medium-Sized Enterprises (SMEs) face tremendous challenges in their attempt to pursue technological innovations. This paper argues that co-opetition strategy - simultaneous pursuit of competition and collaboration - helps SMEs to develop their ability to effectively pursue technological innovations. The authors developed a multilevel conceptual model consisting of factors...

    Provided By Virginia Municipal League

  • White Papers // Feb 2012

    On Renewable Sensor Networks With Wireless Energy Transfer: The Multi-Node Case

    Wireless energy transfer based on magnetic resonant coupling is a promising technology to replenish energy to sensor nodes in a Wireless Sensor Network (WSN). However, charging sensor node one at a time poses a serious scalability problem. Recent advances in magnetic resonant coupling shows that multiple nodes can be charged...

    Provided By Virginia Municipal League