Our objective is to use information on the vehicles approaching an intersection to control the traffic signal. Recent work in this area has used this information to minimize the average delay of vehicles controlled by the signal. We demonstrate that, when there are significant differences in the volume of traffic approaching from different directions, the average delay of the vehicles in the lo...

Inspired by the need for efficient traffic control in urban areas, we study the problem of minimizing the longest queue length in traffic networks. In our model cars only move forward and do not overtake each other and time is divided in rounds of a given length. Cars always cross intersections when they have the green signal and they are at the front of the queue, otherwise they wait. Each car...

Many real-time applications use Internet as a media to transmit their data and need guarantee for correct data transmission and limited transmission delay. It requires efficient network traffic protocols to avoid or limit the level of congestion. In this paper we propose, design and analyze a Robust Delay Based Controller (RDBC) for traffic management on transmission control protocol (TCP). Thi...

Previous downlink scheduling algorithms of WiMAX (Worldwide Interoperability for Microwave Access), like DRR (Deficit Round-Robin) and WRR (Weighted Round-Robin), usually reserve minimum rate to each type of traffic and cannot consider the status of queue length of each connection, thus making it unsuitable for VoIP on-off traffic model. One well-designed scheduling algorithm is expected to coo...

This paper describes an ns-based simulation analysis of TCP Tahoe, Reno, NewReno and SACK congestion control over hybrid wireless and wired networks. We compare the throughput performance between the four TCP versions. Since RTT variation statistics are used by some researchers to distinguish the congestion losses from wireless channel losses, we compute RTT variation statistics under different...

The congestion at the PLN intersection Kaliurang street Km 8 is reason of Unofficial Officers or so-called "Pak Ogah" act as traffic regulators assist in movement driving from minor roads to major roads. Therefore, objective study was determine impact on performance intersections. survey conducted for 3 days which were volume survey, a vehicle speed, behavior, and length queue. VISSIM modeling ...

Abstract By applying the Takács’ technique about the busy period to the regenerative cycle method, this paper gives the strict proof for the time average distributions of the queue length in M/G/1 without depending on other methods. Moreover we extend its proof from the service time to the completion time(CT). That is, we choose the stochastic behavior on the completion time as the regenerative...

Minimizing waiting time for tasks waiting in the queue for execution is one of the important scheduling criteria which took a wide area in scheduling preemptive tasks. In this paper we present Changeable Time Quantum (CTQ) approach combined with the round-robin algorithm, we try to adjust the time quantum according to the burst times of the tasks in the ready queue. There are two important bene...

In our previous work, a highly scalable and faulttolerant network architecture, the Progressive Multi-hop Rotational Clustered (PMRC) structure, is proposed for constructing large-scale wireless sensor networks. Further, the overlapped scheme is proposed to solve the bottleneck problem in PMRC-based sensor networks. As buffer space is often scarce in sensor nodes, in this paper, we focus on stu...

In this paper it is attempted to assist the design process of a network by simulating a traffic pattern that would appear in a network when a video sequence file is transmitted through an ATM switch. A queuing model is created by software, which simulated an ATM switch. The functions performed by the queuing model are: receiving packets; assigning an appropriate channel to each packet; adding a...