NetSim v14.4 Help

Table of Contents

  • Introduction to Network simulation and NetSim
    • Introduction to NetSim (Level 1)
      • Simulation environment and workflow
      • How does a user create and save an experiment in workspace?
      • Typical sequence of steps to perform the experiments provided in this manual
    • Understand the working of Basic Network Commands (Level 1)
      • Theory
      • Network setup
      • Procedure
      • Network Commands
      • Exercises
    • Understand the events involved in NetSim DES in simulating flow of one packet from a Wired node to a Wireless node (Level 2)
      • Theory
      • Network setup
      • Procedure
      • Output
      • Discussion
    • Plot the characteristic curve of throughput versus offered traffic for a Pure and Slotted Aloha system (Level 2)
      • Theory
      • Offered load and throughput calculations
      • Network setup
      • Output
      • Exercises
  • Network Performance
    • Data traffic types and network performance measures (Level 1)
      • Network Performance
      • Types of Traffic
      • Featured Examples
      • Appendix: Obtaining delay metrics in NetSim
      • Exercises
    • Simulating Link Failure (Level 1)
      • Objective
      • Theory
      • Network Setup
    • Delay and Little’s Law (Level 2)
      • Introduction
      • NetSim Simulation Setup
      • Part-1: A Single Flow Scenario
      • Independent verification of Little’s law
      • Average queue length and the average queuing delay
      • Appendix
    • Throughput and Bottleneck Server Analysis (Level 2)
      • Introduction
      • NetSim Simulation Setup
      • Part - 1: A Single Flow Scenarios
      • Part - 2: Two Flow Scenario
      • Useful Exercises
  • Routing & Switching
    • The OSPF weight setting problem and the performance comparison of the OSPF vs. RIP
      • Part A: The OSPF Weight Setting Problem
      • Part-B: Performance comparison of OSPF vs. RIP
    • Understand working of ARP and IP Forwarding within a LAN and across a router (Level 1)
      • Theory
      • ARP protocol Description
      • ARP Frame Format
      • IP Forwarding Description
      • Network Set up
      • Procedure
      • Output – ARP across a LAN
      • Discussion – ARP across a LAN
      • Procedure
      • Output I – ARP across a WAN
      • Discussion I – ARP across a WAN
      • Output II – ARP across a WAN
      • Discussion II – ARP across a WAN
      • Exercises
    • Simulate and study the spanning tree protocol (Level 1)
      • Introduction
      • Network Setup
      • Procedure
      • Output
      • Discussion
    • Understanding VLAN operation in L2 and L3 Switches (Level 2)
      • Introduction to VLAN
      • Network setup
      • Procedure
      • Output and Inference for Intra-VLAN
      • Output and Inference for Inter-VLAN
      • Exercises
    • Understanding Access and Trunk Links in VLANs (Level 2)
      • Theory
      • Network Setup
      • Procedure
      • Output
    • Understanding the working of Public IP Address and Network Address Translation (NAT). (Level 2)
      • Theory
      • Network Setup
      • Procedure
      • Output
      • Exercises
    • M/D/1 and M/G/1 Queues (Level 3)
      • Motivation
      • Mathematical Analysis of the M/D/1 Queue
      • The Experimental Setup
      • Procedure
      • Obtaining the Mean Queuing delay from the Simulation Output
      • Output Table
      • Advanced Topic: The M/G/1 Queue
      • A NetSim Exercise Utilising the M/G/1 Queue
    • Understand the working of OSPF and SPF (Level 3)
      • Objective
      • Theory
      • Network Setup
      • Procedure
      • Output
  • Transmission control protocol (TCP)
    • Introduction to TCP connection management (Level 1)
      • Introduction
      • Network Setup
      • Procedure
      • Output
      • Exercises
    • Reliable data transfer with TCP (Level 1)
      • Introduction
      • Network Setup
      • Procedure
      • Output
      • Inference
    • Mathematical Modelling of TCP Throughput Performance (Level 2)
      • Introduction
      • Network Setup
      • Procedure
      • Output
      • Observations and Inference
    • TCP Congestion Control Algorithms (Level 2)
      • Introduction
      • Network Setup
      • Procedure
      • Output
      • Observations and Inference
      • Exercises
    • Understand the working of TCP BIC Congestion control algorithm, simulate, and plot the TCP congestion window (Level 2)
      • Theory
      • Network setup
      • Procedure
      • Output
  • Wi-Fi: IEEE 802.11
    • Wi-Fi: Throughput variation with distance (Level 1)
      • Introduction
      • Simplified pathloss model
      • The IEEE 802.11g PHY Rates Table
      • Calculating distances at which the PHY rate changes
      • Predicting the throughput
      • Network Setup
      • Procedure
      • Simulation Output
      • Results
      • Discussion
      • Conclusion
      • References
      • Exercises
    • Wi-Fi: UDP Download Throughput (Level 1)
      • The Setup and Motivation
      • Predicting the UDP Throughput
      • Network Setup
      • Procedure
      • Output Without and with RTS-CTS
      • Output of Multiple AP-STA Without and with RTS-CTS
      • Discussion
    • How many downloads can a Wi-Fi access point simultaneously handle?(Level 2)
      • Motivation
      • Objective
      • Theory
      • Network Setup
      • Procedure
      • Measurements and Output
      • Observations
      • Reference Documents
    • Multi-AP Wi-Fi Networks: Channel Allocation (Level 2)
      • Introduction
      • Network Setup
      • Output
      • Discussion
    • Wi-Fi Multimedia Extension (IEEE 802.11 EDCA) (Level 3)
      • Introduction
      • EDCAF: Access Categories
      • EDCAF: Service Differentiation Mechanisms
      • The Experimental Plan
      • Simulation Experiments to Study IEEE 802.11 EDCAF
      • Simulation Results
      • Discussion of the Simulation Results
  • Internet of Things (IOT) and Wireless Sensor Networks
    • One Hop IoT Network over IEEE 802.15.4 (Level 2)
      • Introduction
      • The IEEE 802.15.4 PHY and MAC
      • Objectives of the Experiment
      • NetSim Simulation Setup
      • Simulation Procedure
      • Analysis of Maximum Throughput
      • Comparison of Simulation and Calculation
    • IoT – Multi-Hop Sensor-Sink Path (Level 3)
      • Introduction
      • Theory
      • Network Setup
      • Packet Delivery Rate vs. Distance
      • Inference
      • Reaching a Longer Distance by Multihopping
      • Output for Router between sensor and sink sample
      • Inference
    • Performance Evaluation of a Star Topology IoT Network (Level 3)
      • Introduction
      • NetSim Simulation Setup
      • Procedure
      • Output
      • Discussion
      • References
    • Study the 802.15.4 Superframe Structure and analyze the effect of Superframe order on throughput (Level 3)
      • Introduction
      • Network Setup
      • Procedure
      • Output
      • Inference
  • Radio Propagation
    • Pathloss, Shadowing and Fading (Level 1)
      • Part 1: Pathloss and Shadowing
      • Part 2: Rayleigh Fading
      • Exercises
      • References
  • Mobile Ad hoc Networks
    • Connectivity of a randomly deployed 1-D ad hoc network (Level 2)
      • Objective
      • Preliminaries
      • Mathematical analysis of a 2-node 1-D network
      • Modelling the transmission range
      • Procedure to simulate this scenario in NetSim
      • Procedure to obtain the number of time network is connected from results.
      • Simulation Results
      • Advanced Topic: End-to-end connectivity of a network with n Nodes
      • Procedure to simulate the n node 1-D scenarios in NetSim
      • Python code for obtaining \(\mathbf{p}_{\mathbf{c}}\) from the analytical expression
      • Results
      • Exercises
      • References
  • 4G LTE
    • LTE Handover (Level 1)
      • Handover modeling in NetSim
      • Use of SNR instead of RSRP
      • Control packet exchange
      • Scenario
      • Network Settings
      • Results and Discussion
      • References
    • Impact of Interference in 4G Networks (Level 3)
      • Objective
      • Introduction
      • Network Simulation Setup
      • Discussions
      • Understanding the points of handoff
      • Further Discussion
      • References
    • Understanding the Impact of MAC Scheduling algorithms on throughput, in a multi-UE scenario (Level 2)
      • Introduction
      • Network simulation setup
      • Part I: Multi UE throughput with UEs at different distances and channel is not time varying
      • Part II: Multi UEs at different distances with a time varying channel
  • 5G NR
    • MIMO Beamforming in 5G: A start with MISO and SIMO
      • Network Simulation set up
      • Network Scenario:
      • Part 1- MISO. Network Configuration
      • Part 2- SIMO. Network Configuration:
      • Simulation Output:
    • Throughput and fairness of 5G scheduling algorithms in a complex network environment
      • Network Setup
      • Results and Analysis
    • Understanding the 5G NR PHY
      • Objective
      • Introduction
      • Network simulation setup
      • Settings
      • Analytical Estimation of Data Throughput
      • Results
      • Discussion
      • Exercises
    • Understanding 5G NR (3GPP) pathloss models
      • Objective
      • Motivation
      • The 5G pathloss equations
      • Network simulation setup
      • Network scenario:
      • Settings
      • Case 02: 5G NR 3GPP Pathloss Models Distance 500m
      • Case 03: 5G NR 3GPP Pathloss Models Distance 1000m
      • Results
    • Performance of OFDMA SU-MIMO in 5G
      • Objective
      • Introduction
      • Network simulation setup
      • NetSim Settings
      • Discussion
      • Exercises
    • 5G Numerologies and their impact on end-to-end latencies
      • Objective
      • Theory
      • Network simulation setup
      • Network Model
      • Case 1: One UE is transmitting and receiving UDP traffic from a server
      • Procedure
      • Case 2: A complex 5G scenario with Sensors, Cameras and Smartphones having DL and UL, TCP and UDP flows
      • Procedure
      • Results
    • MIMO Communication: Channel Matrix Asymptotic Analysis
      • Objective
      • Introduction
      • Network simulation setup
      • Network Scenario
      • Settings
      • Part 1: Asymptotic Condition Number Mean
      • Results
      • Part 2: Asymptotic Condition Number Distribution
      • Theory
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