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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