The FPGA Implementation of the RC-DBA Algorithm in the EPON Network

In the upstream link of the EPON network, numerous ONUs receive the privileges to use the optical medium from the scheduler of the OLT, but not through the competition with others. Therefore, it is very important to select a proper DBA algorithm to allocate the band to each ONU in an effectively and fair manner. In the preceding study, the authors proposed the RC-DBA algorithm that complements many problems in existing DBA algorithms. In this paper, they designed the MAC scheduler for the OLT, which the proposed algorithm was applied to and implement it in the FPGA. In addition, in order to verify the operation of the scheduler, they developed the embedded Linux based testbed.