EponSimulator

Java simulator for upstream EPON (Ethernet Passive Optical Network) channels.

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EponSimulator

Java simulator for upstream EPON (Ethernet Passive Optical Network) channels.

Overview

This java program simulates an upstream EPON channel. The upstream EPON channel is shared among all ONUs using time division multiple access (TDMA). The OLT allocates the appropriate share of upstream bandwidth to each ONU with the help of a dynamic bandwidth allocation (DBA) algorithm. Additionally, to reduce power consumption, ONUs can enter a low power state, known as doze mode, that makes their transmitter sleep when there is no upstream traffic.

Invocation

java EponSimulator [-n num_onus] [-l simulation_length (s)] [-s simulation_seed] [-t traffic_rate (b/s)] [-p packet_size (bytes)] [-g traffic_distribution (deterministic|poisson|pareto)] [-q queue_threshold (packets)] [-m maximum_queue_size (packets)] [-c uplink_capacity (b/s)] [-d dba_cycle (s)] [-a dba_algorithm (fixed|fair|proportional|gated|limited|limitedExcess)] [-w onu_wakeup (s)] [-r onu_refresh_timeout (s)] [-e onu_doze_mode_energy_ratio] [-f traffic_profiles] [-u] [-v]

Output

The simulator outputs a summary of each ONU statistics:

Number of packets received, sent and dropped
Average packet delay
Time in each possible state
Energy consumption

With option -v, the simulator outputs a line every time an important event happens:

event_time ONU onu_id event_type event_info

Legal

This simulator is licensed under the GNU General Public License, version 3 (GPL-3.0). For more information see LICENSE.txt