Engineering Clinic

Performance Analysis of 50-Node Wireless Network Using NS3  AIM: To simulate a 50-node wireless network using the NS-3 network simulator and perform detailed performance analysis by evaluating key network metrics such as throughput, delay, packet delivery ratio (PDR), packet loss ratio (PLR), and bytes transmitted and received.   PROMPT USED: LLM Used: ChatGpt, Claude Generate NS-3 code to simulate a 50-node wireless network using the AODV routing protocol and analyse network performance metrics such as throughput,  delay, packet loss ratio, packet delivery ratio and bytes transmitted and received using FlowMonitor.   SOURCE CODE: #include "ns3/core-module.h" #include "ns3/network-module.h" #include "ns3/mobility-module.h" #include "ns3/wifi-module.h" #include "ns3/internet-module.h" #include "ns3/aodv-module.h" #include "ns3/applications-module.h" #include "ns3/flow-monitor-module....

Simulation of Mixed TCP and UDP Traffic and their Performance Impact Using ns-3   The objective of this experiment is to simulate a network with both TCP and UDP traffic using ns-3 and analyze how they affect each other’s performance in terms of throughput. In computer networks, TCP (Transmission Control Protocol) is a reliable and congestion-controlled protocol, while UDP (User Datagram Protocol) is faster but does not implement congestion control. When both protocols share the same network, their behavior differs significantly. This experiment studies their interaction and performance impact. A network topology with multiple nodes connected using point-to-point links is created in ns-3. TCP traffic is generated using BulkSendApplication and UDP traffic is generated using OnOffApplication. FlowMonitor is used to collect performance metrics such as throughput. NetAnim is used to visualize packet transmission. #include "ns3/core-module.h" #include "ns3/network-module.h...

Aim: To design and simulate a DNS query-response mechanism over UDP sockets using NS3. The client sends QUERY:<domain> packets to a DNS server through a router; the server replies with ANSWER:<domain>:<ip> or NXDOMAIN. The experiment measures throughput, delay, and packet delivery ratio, and visualises packet flow using NetAnim and Gnuplot. Prompt: "Implement a simple DNS query-response application over UDP sockets in NS3. The simulation should include a DNS Client node, a Router, and a DNS Server node connected via point-to-point links. The client should send DNS queries (QUERY:<domain>) and the server should respond with IP addresses (ANSWER:<domain>:<ip>) or NXDOMAIN. Include NetAnim animation output, FlowMonitor statistics, and Gnuplot graph generation for throughput and delay. LLM used: Claude (Anthropic), Gemini Source Code: #include "ns3/core-module.h" #include "ns3/network-module.h" #include "ns3/inte...

Performance Analysis of TCP Reno Congestion Control Under Varying Round-Trip Time Conditions: An ns-3 Simulation Study   PROMPT Part 1: You are an expert in ns-3 network simulation and C++. I want you to design and implement a complete ns-3 simulation in C++ to analyze the performance of TCP Reno over a point-to-point link with varying RTT values (10 ms to 200 ms). Requirements: Simulation Setup ●         Create a point-to-point network topology (2 nodes). ●         Configure link parameters such as: ○         Data rate (choose a reasonable default like 5 Mbps or 10 Mbps) ○         Packet size ○         Queue type (DropTail or similar) ●         Use TCP Reno as the transport protocol. ●         Ensure RTT varia...