Network Simulation

The Network Simulation project is a Java-based application designed to simulate the behavior of a network of stations sending packets to a server. The simulation models packet arrival, transmission, and delivery times, while also tracking key metrics such as packet loss, average delay, and network throughput.

Features

• Packet Management: Creation and management of packets with attributes like arrival time, transmission time, and delivery time.
• Station Behavior: Simulate station operations including packet queueing, transmission attempts, and handling of buffer overflow.
• Network Metrics: Calculate and display overall average delay, network throughput, and packet loss rate.

Classes

Packet

• Attributes:

  • name: Name of the packet
  • id: Unique identifier
  • arrivalTime: Time slot when the packet arrived at the station
  • transmissionTime: Time slot when the packet started transmitting
  • deliveryTime: Time slot when the packet was delivered to the destination
  • sourceStation: Source station of the packet
  • destination: Destination of the packet

• Methods:

  • Getters and setters for each attribute

Station

• Attributes:

  • name: Name of the station
  • id: Unique identifier
  • buffer: Queue to hold packets
  • wavelength: Wavelength used by the station
  • totalDelay: Total delay of all transmitted packets
  • packetsSent: Total number of successfully sent packets
  • packetsLost: Total number of lost packets due to buffer overflow

• Methods:

  • transmitPackets(int currentTimeSlot): Simulates packet transmission with a 50% success probability
  • addPacket(Packet packet, int arrivalTime): Adds a packet to the buffer if there is space, otherwise increments packet loss counter
  • Getters and setters for relevant attributes

NetworkSimulation

• Methods:
  • main(String[] args): Initializes stations, simulates packet arrival and transmission over a specified number of time slots, and calculates network metrics

Usage

1. Compile the Java files:

   javac NetworkSimulation.java Packet.java Station.java