A New Dynamic Bandwidth Allocation Protocol with Quality of Service in Ethernet-based Passive Optical Networks

TL;DR

This paper introduces a new dynamic bandwidth allocation MAC protocol for Ethernet-based Passive Optical Networks that enhances efficiency, reduces delays, and guarantees quality of service for high-priority traffic.

Contribution

It proposes a novel DBA algorithm that maximizes network efficiency and ensures zero interruption of high-priority traffic during ranging.

Findings

High network throughput achieved in simulations

Low packet delay and delay variation for high-priority traffic

Zero interruption of high-priority traffic during ranging

Abstract

Ethernet-based Passive optical network (E-PON) is the key for next generation access networks. It must have the property of high efficiency, low cost, and support quality of service (QoS). We present a novel media access control (MAC) protocol that maximizes network efficiency by using dynamic bandwidth allocation (DBA) algorithm suitable for E-PON. This protocol minimizes packet delay and delay variation for high priority traffic to ensure QoS. Simulation results show excellent network throughput. Simulation results also show low packet delay and packet delay variation for high priority traffic compare with traditional MAC protocol of E-PON. When the network performs ranging, this protocol ensures zero interruption of high priority traffic, such as audio or video applications.