In great generality, the basic steady-state distributions in the BMAP / G /1 queue have asymptotically exponential tails. Here we develop asymptotic expansions for the asymptotic decay rates of these tail probabilities in powers of one minus the traffic intensity. The first term coincides with the decay rate of the exponential distribution arising in the standard heavy-traffic limit. The coeffi...

In deadline-based networks, the delay performance experienced by real-time data transfer largely depends on traffic deadlines and the load level along the data transfer path. To ensure fairness among users and to aid in network load control, a delay pricing and charging scheme was developed for realtime delivery in deadline-based networks; users experiencing different delay performance are char...

The paper is presenting a new method for the management of the traffic flow on highways, based on the constant time to collision criterion. The criterion is applied at two levels, for each car implied in traffic, and for the whole highway. Each car is provided with a constant time to collision cruise controller, that is maintaining optimal distance-gaps between cars, in accordance to the techni...

skidding operations can cause considerable and wide spread soil disturbance. the objective of this study was to evaluate the effects of ground skidding operations on soil compaction, moisture content, and total porosity at different levels of slope and traffic frequency. four levels of traffic intensity (3, 8, 13, and >13 passes of a crawler tractor onezhets ? 110) and three levels of slope ( 2...

We introduce in this paper a shadow detection method for vehicles in traffic video sequences. Our method approximates the boundary between vehicles and their associated shadows by one or more straight lines. These lines are located in the image by exploiting both local information (e.g. statistics in intensity differences) and global information (e.g. principal edge directions). The proposed me...

We establish a heavy-traffic asymptotic expansion (in powers of one minus the traffic intensity) for the asymptotic decay rates of queue-length and workload tail probabilities in stable infinite-capacity multi-channel queues. The specific model has multiple independent heterogeneous servers, each with i.i.d. service times, that are independent of the arrival process, which is the superposition ...

Performance of iCAR system a new load balancing scheme in wireless networks is analyzed. Traffic capacity enhancement of the iCAR system with respect to the conventional cellular system, without any load balancing, is evaluated. It is shown that, with a moderate amount of relay coverage, perfect load balancing can be achieved, thus enabling the system to support maximum possible traffic intensi...

Railway traffic causes both noise and vibrations in surrounding areas. To enable effective planning of reduction measures that may reduce adverse health effects, it is important to gain a better knowledge about the coupling of these effects to noise and vibration exposures from train and road traffic. These exposures may in fact increase in the future, due to increasing traffic intensity with b...

We provide additional descriptions of the steady-state waiting-time distribution in the M/G/1 queue with the last-in firstout (LIFO) service discipline. We establish heavy-traffic limits for both the cumulative distribution function (cdf) and the moments. We develop an approximation for the cdf that is asymptotically correct both as the traffic intensity p ~ 1 for each time t and as t ~ oo for ...

In order to closely simulate the real network scenario thereby verify the effectiveness of protocol designs, it is necessary to model the traffic flows carried over realistic networks. Extensive studies [1] showed that the actual traffic in access and local area networks (e.g., those generated by ftp and video streams) exhibits the property of self-similarity and long-range dependency (LRD) [2]...