Browse by Subject "ad hoc networks"

  • Yang, Yaling; Kravets, Robin (2005-01)
    In this paper, we propose a new protocol, named DDA (Distributed Delay Allocation), which provides average delay guarantees to real-time multimedia applications in wireless ad hoc networks. By adapting the contention window ...

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  • Vu, Long; Nahrstedt, Klara (2007-06)
    Efficient information dissemination over Mobile Ad hoc Networks (MANET) for urban Disaster/Recovery (D/R) missions is emerging as a very challenging and important research problem. In this paper, we present an adaptive ...

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  • Jaramillo Jimenez, Juan J. (2010-05-19)
    The purpose of this dissertation is to design algorithms that provide quality of service and enforce cooperation in wireless ad hoc networks. Using a simple network model, we first study the performance of some previously ...

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  • Li, Ning; Hou, Jennifer C. (2004-10)
    A fully connected topology is critical to many fundamental network operations in wireless ad-hoc networks. In this paper, we consider the problem of deploying additional wireless nodes to improve the connectivity of an ...

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  • Vu, Long; Rimac, Ivica; Hilt, Volker; Hofmann, Markus; Nahrstedt, Klara (2009-03)
    This paper presents an Incentive-based Sharing (iShare) protocol that blends cellular and ad hoc networks for content dissemination services. With iShare, mobile users download content from a source via cellular links and ...

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  • He, Wenbo; Huang, Ying; Nahrstedt, Klara; Lee, Whay C. (2007-03)
    Intrusion/misbehavior detection and response are two important components for defending against various attacks in mobile ad hoc networks. Unfortunately, there is a gap between local intrusion/misbehavior detection and ...

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  • Yi, Seung; Kravets, Robin (2004-12)
    An authentication service is one of the the most fundamental building blocks for providing communication security. In this paper, we present the MOCA (MObile Certificate Authority) key management framework designed to ...

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  • Kim, Tae-Suk; Yang, Yong; Hou, Jennifer C. (2007-04)
    In this paper, we derive an analytical model to evaluate the effect of jointly tuning the carrier sense threshold and employing multiple data rates on the network capacity in multi-rate, multi-hop wireless networks. The ...

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  • Sengul, Cigdem; Kravets, Robin (2006-10)
    Energy management remains a critical problem in ad hoc networks since battery technology cannot keep up with rising expectations in wireless communications. Current approaches to energy conservation focus on reducing the ...

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  • Xue, Yuan; Li, Baochun; Nahrstedt, Klara (2004-12)
    The shared-medium multi-hop nature of wireless ad hoc networks poses fundamental challenges to the design of effective resource allocation algorithms that are optimal with respect to resource utilization and fair across ...

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  • Yi, Seung; Harris, Albert F., III; Kravets, Robin (2007-08)
    With the emergence of ad hoc networking technology came efforts to provide necessary security support for ad hoc networks. However, due to challenging characteristics of ad hoc environments, providing the same level of ...

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  • Yang, Yong; Hou, I-Hong; Hou, Jennifer C.; Shankar, Millikarjun; Rao, Nageswara S. (2007-04)
    Ad-hoc networks of devices and sensors with (limited) sensing and wireless communication capabilities are becoming increasingly available for commercial and military applications. Under a national SensorNet initiative, we ...

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  • Yang, Yaling; Kravets, Robin H. (2004-04)
    In this paper, we present MPARC (Multi-Priority Admission and Rate Control), a novel joint admission control and rate policing protocol for multi-priority ad hoc networks. MPARC is based on our novel bandwidth allocation ...

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  • Sengul, Cigdem; Kravets, Robin (2004-10)
    To reduce energy consumption from idle listening, nodes in ad hoc networks can switch to a power-save mode. However, some nodes may need to stay in active mode to support forwarding. The main challenge of selecting which ...

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