The network performance in WSNs is mainly affected by the congestion due to bursty traffic. Congestion can cause large packet drops, increased energy consumption and latency. Different traffic rate control mechanisms have proposed to mitigate congestion and most of these mechanisms are greatly affecting the fidelity requirement of the applications. In this paper, we proposed an algorithm named,...

In order to exploit the nonlinear time-varying property of network traffic, the traffic flow from controlled sources is described by a fuzzy autoregressive moving-average model with auxiliary input (fuzzy ARMAX process), with the traffic flow from uncontrolled sources (i.e., cross traffic) being described as external disturbances. In order to overcome the difficulty of the transmission delay in...

Traffic congestion varies spatially and temporally. The observation of the formation, propagation and dispersion of network traffic congestion can lead to insights about the network performance, the bottleneck dynamics etc. While many researchers use the traffic flow data to reconstruct the congestion profile, the data missing problem is bypassed. Current methods either omit the missing data or...

Internet traffic is bursty and unpredictable. It is therefore important to control congestion to protect users from traffic surges in a way that is efficient, stable and robust. Research has shown that active queue management (AQM) has the potential to control congestion such that these requirements are met. However, despite much work and many published proposals of AQM algorithms, a satisfacto...

A major factor that contributes to congestion on today’s freeways is the severe inhomogeneities of the traffic streams. If the traffic density can be controlled, congestion can be eliminated and delays can be reduced. This goal can be achieved by properly controlling the mean speed of traffic on each section of the freeway lane as well as the ramp entering rates. In this paper a fuzzy traffic d...

An efficient and accurate measurement of congestion intensity helps investigate the traffic conditions at different road classes and provides useful information for transportation planning and traffic operation improvement. However, the existing traffic congestion intensity measurement models often suffer from two major problems: one is that there is no generally accepted method that can be use...

This paper presents a traffic control system, called ARTC, which addresses frequent oc­ currences of congestion and provides areawide traffic progression. The signal controllers in ARTC are interconnected through a computer network. By exchanging traffic flow in­ formation among the signal controllers, ARTC provides a new concept in areawide traffic control. With a global view of the traffic in...

In this paper we consider ABR traffic which shares an output port of a switch with delay sensitive CBR/VBR traffic. Congestion control of the ABR traflic is achieved by mean? of an Explicit Rate control scheme. Two important performance measurea are evaluated using an analytical model : the ABR-buffer occupancy distribution in the switch and the ABR traffic throughput. We consider two types of ...

Transmission Control Protocol (TCP) carries most of the traffic on the Internet these days. There are several implementations of TCP, and the most important difference among them is their mechanism for controlling congestion. One of the methods for determining type of a TCP is active probing. Active probing considers a TCP implementation as a black box, sends different streams of data to the ap...

In urban transportation networks, research work has been focusing on alleviating the traffic congestion to optimize the network performance, such as increasing the traffic flow and decreasing the user travel time. However, studying the physical properties of traffic propagation and congestion growing has always been a difficult task, especially in a large and complex transportation network. Pre...