A bandwidth guaranteed polling MAC protocol for Ethernet passive optical networks

Abstract

Abstract-While the backbone networks have experienced substantial changes in the last decade; the access networks have not changed much. Recently, passive optical networks (PONs) seem to be ready for commercial deployment in access networks due to the maturity of a number of enabling technologies. long distance and reduced maintenance. Among PON technologies, the Ethernet PON (EPON) presently being standardized by the IEEE 802.3ah Ethernet in the First Miles (EFM) Task Force is most attractive because of its high speed, low cost, familiarity, interoperability and low overhead. In this paper, we propose a novel Bandwidth Guarantee Polling (BGP) scheme that will allow the upstream bandwidth to be shared based on the service level agreement (SLA) between each subscriber and the operator. It is able to provide bandwidth guarantee for premium subscribers according to the SLAs while providing best-effort service to other subscribers. The analytical and simulation results prove that the proposed scheme does best in what it is designed to do compared to another well-known scheme that has not considered providing differentiated services. With business customers preferring premium services with guaranteed bandwidth and residential users preferring low-cost best effort services, our scheme could benefit both groups of subscribers as well as the operators.

On a Characteristic of Data Transmission In Bus Network

“…The stand-by time does not influence the mean waiting time very much in the case of high q, but influences that considerably in the case of q=0. 1. This means that the number of stand-by decreases in the case of high q, so that the time of stand-by does not influence very much.…”

“…In the studies for bus network, the proposal of MAC (Media Access Control) protocol [1], the simulation of MAC protocol for the performance evaluation [2] and the proposal of the dynamic bandwidth allocation [3] for Ethernet PON (Passive Optical Network) were presented. And, the time synchronization on Gb/s Ethernet [4] which is necessary for the wide distributed system, the host configuration mechanism to network in Ethernet and wireless LAN [5] are studied.…”

Dynamic Bandwidth Allocation for Next-generation OFDMA-PON to Improve QoS

“…To provide differentiated services and guaranteed QoS, Bandwidth Guaranteed Polling (BGP) mechanism [5] is proposed to equally divide bandwidth into several parts and be allocated to ONUs with higher priority according to service-level agreement (SLA). However, equal bandwidth division may result in data fragmentation, which leads to extra guard band, and decrease throughput and bandwidth utilization.…”

A priority-based processor sharing model for TDM passive optical networks

“…To handle demands in a multi-service environment, a differentiation between services for QoS provision has been introduced in some DBA algorithms. Ma et al [15] proposed a bandwidth guaranteed polling (BGP) scheme by dividing ONUs into two groups, those with guaranteed service and those with best-effort service respectively. Zhang et al [16] developed a deterministic effective bandwidth -generalized processor sharing (DEB-GPS) scheduler to manage ONU flows.…”

“…To support differentiated services in PONs, the approach addressed in previous work [15] - [28] is to grant bandwidth to different services according to their class requirements and provide certain guarantees. The difference of these schemes is the way to determine the grant bandwidth for service classes.…”