Network simulator

The modelling of traffic flow using methods and models from physics has a long history. In recent years especially cellular automata models have allowed for large-scale simulations of large traffic networks faster than real time. On the other hand, these systems are interesting for physicists since they allow to observe genuine nonequilibrium effects. Here the current status of cellular automata models for traffic flow is reviewed with special emphasis on nonequilibrium effects (e.g. phase transitions) induced by on- and off-ramps.

23p nguyenhaisu 07-08-2015 54 4   Download

The purpose of the thesis is described as follows: To develop an independent simulation model for IEEE 803.2az Energy Efficient Ethernet Standards with Active and Idle modes of operations; To design and simulate a traffic source generator with exponentially distributed inter-arrival periods, and forecast the duration of the next idle periods, based in the distribution of packet arrivals; To extend the simulation of Dynamic power management in Access networks with the inclusion of prioritized traffic, which changes the duration of low power modes;…

141p runthenight07 01-03-2023 10 3   Download

This thesis proposes and implements a new and novel solution on simulators and real devices to solve the mobility problem in a VPN. The new solution adds mobility support to existing L2TP/IPsec (Layer 2 Tunneling Protocol/IP Security) tunnels. The new solution tunnels Layer 2 packets between VPN clients and a VPN server without using Mobile IP, without incurring tunnel-re-establishment at handoff, without losing packets during handoff, achieves better security than current mobility solutions for VPN, and supports fast handoff in IPv4 networks.

123p runthenight07 01-03-2023 6 4   Download

Research and improve scheduling admission control mechanism to enhance QoS based on incoming burst rate prediction at core node to improve scheduling efficiency for low QoS bursts but still ensure a level of service quality for high QoS bursts. The effectiveness of the scheduling admission control mechanism was valued through simulation and mathematical analysis.

26p gaocaolon12 18-06-2021 27 3   Download

This paper intends to present the System Dynamics (SD) as a novel method to simulate the thrust force developed during drilling of GFRP composites. Good quality holes are extremely fundamental so as to accomplish equally good joints amid creation of components prepared from composite for better execution.

9p lucastanguyen 01-06-2020 12 3   Download

The article is devoted to the development of technological processes operators simulators used to train operational personnel skills of technological processes management of industrial enterprises.

5p guineverehuynh 18-06-2020 32 5   Download

Scenario studies simulate the whole fuel cycle over a period of time, from extraction of natural resources to geological storage. Through the comparison of different reactor fleet evolutions and fuel management options, they constitute a decision-making support.

15p christabelhuynh 30-05-2020 26 2   Download

Research objectives: Studying and evaluation of active queue management mechanisms to find out the advantages and disadvantages of each mechanism, in order to classify and evaluate application performance for mechanisms and using fuzzy logic to improve active queue management mechanism; the results of the first goals is to perform study motivation first and will be the foundation for the theory and simulation improvements of the thesis.

31p change03 06-05-2016 60 4   Download

Đến với nội dung đề tài "Conservative Synchronization of Large-Scale Network Simulations (Đồng bộ thận trọng trong mô phỏng mạng truyền thông quy mô lớn)" để nắm bắt được những nội dung tổng quan về mô phỏng mạng truyền thông, phân tích các mô hình CMB, áp dụng mô hình phân tích null message để dự đoán hiệu suất mô phỏng, phần mềm mô phỏng network simulation,... Mời các bạn cùng tham khảo để nắm bắt nội dung chi tiết.

23p parkhip 03-09-2015 89 13   Download

Frank Eyermann – Frank.Eyermann@unibw.de – Information Systems Laboratory – Faculty for Computer Science – Universität der Bundeswehr, Munich Create the following scenario – Two nodes, link in between – Sender agent: Agent/UDP – Receiver agent: Agent/Null – Connect agents – Data source: Application/Traffic/CBR – Run from 0.5 to 4.5 sec, finish at 5.0 sec

14p dhvbkhn 17-10-2012 60 4   Download

Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học đề tài : IDEA1: A validated SystemC-based system-level design and simulation environment for wireless sensor networks

20p dauphong11 06-02-2012 44 4   Download

OTcl Bộ biên dịch Tcl mở rộng hướng đối tượng NS Simulation Library Event Scheduler ObjectsNetwork Component Objects Thư viện Mô phỏng NS Các đối tượng Bộ lập lịch Sự kiện Các đối tượng Thành phần Mạng  Network Setup Helping Modules Các mô đun Trợ giúp Thiết lập Mạng  Plumbling Modules  Simulation Results  Analysis  NAM Network Animator Các mô đun Plumbling Các kết quả Mô phỏng Phân tích Minh họa Mạng NAM Để thiết lập và chạy một mạng mô phỏng, người dùng phải viết một tập lệnh OTcl Script và khởi động một lịch trình sự...

9p caott6 22-05-2011 88 14   Download

Hướng dẫn dùng Cygwin cài đặt NS-2 trên Windows NS-2 (Network Simulation version 2) là phần mềm chuyên dùng để mô phỏng các giao thức mạng. Rất nhiều đề tài tốt nghiệp chuyên ngành CNTT sử dụng NS-2 để demo. Chúng ta có thể cài NS-2 trên Linux hoặc Windows. Trên Linux thì chỉ việc giải nén rồi gỏ ./install để cài (có thể set thêm biến môi trường) nhưng chẳng lẻ cài có NS-2 mà cần phải cài luôn Linux thì …. uổng . ...

9p xmen2425 28-03-2011 567 65   Download

Tài liệu tham khảo Hướng dẫn cài đặt The Network Simulator - ns-2

7p son2483 28-10-2010 278 41   Download

In line with the rapid growth of telecommunications networks in recent years, there has been a corresponding increase in the level of network complexity. Consequently, it is now generally accepted that advanced computer aided simulation and analysis methods are essential aids to the management of large networks. The 1990s will be recalled as the decade of business process re-engineering

19p tienvovan 11-09-2010 98 6   Download