Wen-bo He

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1 Mobility patterns of first responders (FRs) have distinct properties from other well-studied networks, such as vehicular and campus networks. FRs are mission-oriented. They are organized, cooperative and responsive to emergency situations. In this paper, we propose a novel mobility model, CORPS, which captures both environmental and operational(More)
—Recent large scale disasters have awakened governments domestically and overseas to their needs for preparedness to support homeland security and public safety. First responders of various agencies (e.g., fire department, police, EMS) are often on the front line to assist in managing these events to protect lives and property. The effectiveness of their(More)
—In mission-critical networks, command, alerts, and critical data are frequently broadcast over wireless networks. Broadcast traffic must be protected from malicious attacks, wherein sources are impersonated or broadcast packets are forged. Even though broadcast authentication eliminates such attacks, attackers can still launch Denial-of-Service attacks by(More)
End-to-end delay measurement has been an essential element in the deployment of real-time services in networked systems. Traditional methods of delay measurement based on time domain analysis, however, are not efficient as the network scale and the complexity increase. We propose a novel theoretical framework to analyze the end-to-end delay distributions of(More)
— Reliable message propagation is an important means of communication in mobile ad hoc networks (MANETs), and serves as a fundamental component for various applications , such as mobile advertising, inter-vehicle safety message propagation, alert propagation to defend against cyber-attacks in MANETs. Reliable message propagation requires that a message can(More)
A good amount of research has been developed to support QoS issues in IEEE 802.11 ad hoc networks. In this chapter, we address QoS management issues through multiple layers for real-time multimedia applications. We investigate the adaptation mechanisms at middleware layer and MAC layer to dynamically adjust the service classes for applications by feedback(More)
— 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 network-wide response in such networks. To bridge this gap, alert propagation, aiming to spread alert messages to the whole network upon(More)
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