This paper identifies the structural properties of RealAudio traffic, develops an application-level model and validates the model using multi-scale analytic techniques. RealAudio traffic is quite different from web traffic and constant bit rate traffic, models commonly used for Internet and multimedia traffic respectively today. We demonstrate that RealAudio has rich behavior across a range of ...

In this paper, we propose a simple MMPP (Markov Modulated Poisson Process) traffic model that approximates the LRD (Long Range Dependence) characteristics of traffic traces measured at our institution edge router, at both the flow and packet levels. The MMPP model mimics the real behavior behind the interaction between users, protocols and the network, using the notion of sessions and flows, th...

This study proposes a capable, scalable, and reliable edge-to-edge model for filtering malicious traffic through real-time monitoring of the impact of user behavior on quality of service (QoS) regulations. The model investigates user traffic, including that injected through distributed gateways and that destined to gateways that are experiencing actual attacks. Misbehaving traffic filtration is...

This paper empirically investigates the effect of policyholders’ private information about risky traffic behavior on automobile insurance coverage and ex post risk. It combines insurance company information with the policyholders’ private information on risky traffic behavior (traffic violations) that is not accessible to the insurance company. It is demonstrated that being unable to reject the...

  Abstract  One of the suitable and beneficial methods in promoting behaviors of road traffic injury prevention could be the application of educational programs. Therefore, the aim of this study was to determine the effect of health belief model on preventive behaviors related to road traffic injuries among primary school students. 100 participants was randomly selected among four...

This paper studies heavy traffic behavior of a G/G/1 last-in-first-out (LIFO) preemptive resume queue, by extending the techniques developed in Limic (1999). The queue length process exhibits a perhaps unexpected heavy traffic behavior. The diffusion limit depends on the type of arrivals (and services) in a fairly intricate way, related to the Wiener-Hopf factorization for random walks.

Recent empirical studies of the internet and WAN traffic data have observed multifractal behavior at time scales below a few hundred milliseconds. There have been some attempts to model this phenomenon, but there is no model to connect the small time scale behavior with behavior observed at large time scales of bigger than a few hundred milliseconds. There have been separate analyses of models ...

Methodologies for modeling ramp driver acceleration-deceleration and gap acceptance behavior during freeway merge maneuvers are presented. This study serves an important purpose by pointing to the limitations of current freeway merge models which treat the ramp driver acceleration-deceleration and gap acceptance behavior as deterministic phenomena. In addition, the interdependence of freeway me...

This document describes a set of heuristics for distinguishing IPsec ESP-NULL (Encapsulating Security Payload without encryption) packets from encrypted ESP packets. These heuristics can be used on intermediate devices, like traffic analyzers, and deep-inspection engines, to quickly decide whether or not a given packet flow is encrypted, i.e., whether or not it can be inspected. Use of these he...

human factors issues associated with roadway design and operations are critical components of improving highway safety. first, the three major components of highway safety are driver behavior, vehicle safety, and roadway safety. the general philosophy in roadside safety follows the priorities of (1) remove the hazard, (2) relocate the hazard, (3) make the hazard forgiving, and (4) shield the ha...