A Hungarian Algorithm for Dynamic Timeslots Scheduling in TWDM-PON

With the rising demands of next-generation networks, additional resources are essential to meet these growing requirements. Given the general resource limitations, efficient allocation becomes critical to address these demands effectively. Passive optical networks (PONs) have emerged as a key technology to support the future needs of access networks. However, due to the huge traffic characteristics of optical network units (ONUs), resource scheduling methods are crucial, resulting in a significant amount of packet drops in the network. To address this, we propose a Hungarian algorithm-based dynamic timeslot scheduling scheme that optimally allocates available timeslots to ONUs in a time- and wavelength-division multiplexed passive optical network (TWDM-PON) network based on time-variant traffic demands. This increases efficiency and reduces congestion. Results show that the proposed algorithm reduces packet losses significantly compared to existing methods by 40-70% under different scenarios.