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This paper proposed a novel DWBA scheme for wavelength-agile based NG-EPON to cater frame resequencing problem and to improve fairness among ONUs while maintaining low packet delay for online scheduling upstream bandwidth on multiple wavelengths.
Dynamic Bandwidth Allocation (DBA) is a fundamental task in Ethernet Passive Optical Networks (EPONs). An EPON must use an efficient DBA to achieve good network performance. A variety of DBA algorithms have been proposed towards this end. Most of these algorithms use average packet delay as an important metric for measuring the performance of the algorithm. In this paper, algorithms for Time Division...
Nowadays, real time data transmission, i.e., high priority (HP), over internet is very popular. That is why, Ethernet passive optical networks (EPONs), with the properties of low cost, high speed and high efficiency with quality of service (QoS) have become promising candidates for the next generation broadband access network. To avoid data collision and provide effective bandwidth utilization a medium...
To effectively schedule transmissions in NG-EPON, Hybrid-PON is further classified into MSD-PON, SSD-PON, and WA-PON depending on their different access architectures, viz. how a group of ONUs share the assigned wavelength channels. The architectures for these three Hybrid-PONs were introduced by the IEEE 802.3 Ethernet Working Group in 2015. In this study, we first propose to apply some existing...
This work presents a novel on-the-fly void filling scheme for Long-Reach EPON called Size Controlled Batch Void Filling (SCBVF). SCBVF aims at reducing the time between consecutive bandwidth grants (attendance time) and hence reducing the average delay for delay-sensitive traffic.
The recent high-bandwidth demand multimedia applications have driven the need for higher bandwidth and faster access network architecture. However, conventional single-channel Ethernet Passive Optical Networks (EPONs) cannot fully realize and satisfy the multimedia demands. Wavelength Division Multiplexing (WDM) EPON is one of the best solutions for supporting the converged triple-play services such...
Ethernet Passive Optical Network (EPON) provides a solution to overcome the ever increasing bandwidth demand in the access network of the communication infrastructure. It is normally studied using simulation, but for proof of concept, a testbed is also needed. Current testbed are based on Application-Specific Integrated Circuit (ASIC) and Field-Programmable Gate Array (FPGA) which are not easily configurable...
Ethernet Passive Optical Network (EPON) is one of the most promising technologies for FTTX deployed by service providers at the access network. Dynamic Bandwidth Allocation (DBA) for the upstream traffic can help optimize the network bandwidth utilization. This paper discusses a centralized DBA called as Universal DBA (UDBA) algorithm that supports quality of service (QoS) of the upstream traffic...
Online game's traffic becomes one of the important traffic over the Internet. In last decade, popularity of the Massively Multiplayer Online Game (MMOG) rapidly increased. Most of MMOG are constructed based on client-server architecture. MMOG needs a network with very low-latency point-to-point in upstream direction and low-latency broadcasted from server to client in downstream direction. In the...
The integration of EPON and WiMAX access networks has demonstrated considerable promise as an access solution applicable to the architecture of Fixed Mobile Convergence (FMC). The complementary features of these two systems provide high bandwidth and mobility, while reducing network deployment costs. Despite the fact that many network hardware architectures have been proposed for integrated EPON/WiMAX...
The P2P lives streaming nowadays becomes more popular and begins to take a larger share of bandwidth together with the Internet video calling. Furthermore, a large scale peer-to-peer (P2P) live streaming has recently been successfully and commercially deployed to provide either live streaming or on-demand video streaming. Cisco predicts that 60% of video traffic worldwide will be consumed by these...
We present a simple yet effective enhancement to the operation of the EPON multipoint control protocol (MPCP) that results in significant performance gains across the whole range of traffic loads. The enhancement, inspired by our earlier work in a related but different context, allows the OLT to perform look-ahead scheduling on the upstream channel. The look-ahead operation is fully compatible with...
In upstream Ethernet passive optical network (EPON) transmission, timeslot needs to be allocated as the needs to share a single fiber from a splitter to the optical line terminal (OLT) can cause a collision. The allocation is usually being studied using simulations, but it does not take into account the physical parameters. This paper shows a study on static bandwidth allocation (SBA) in upstream...
In this paper we propose an enhanced IPACT with limited service for multi-thread DBA in long-reach EPON. We evaluate our scheme by simulations in single-thread and double-thread cases and show that the DBA performance in terms of average delay and jitter can be significantly improved by the proposed algorithm.
In this paper, a delay analysis of Intelligent dynamic bandwidth allocation (IDBA) algorithm is studied. The algorithm is hierarchical, where fuzzy logic is used in the intra-optical network unit (ONU) to enhance the bandwidth utilization while reducing its delay. We compare the IDBA with the most referenced DBA algorithm, Hierarchical IPACT in terms of its delay and cycle time. The results show that...
A new dynamic bandwidth allocation algorithm for long-reach Ethernet passive optical networks is proposed in order to provide client differentiation. The new algorithm differs clients as it takes into consideration the service level agreement (SLA) contracted by each subscriber, achieving better performance for the highest service level agreements in terms of the mean packet delay. Moreover, the algorithm...
Ethernet passive optical network (EPON) is an access network that delivers essential services of voice, video, and data communications reliably, while at the same time providing expected guarantees of the delivery of those services in terms of defined quality of service measures (QOS). This paper compares performance criteria such as delay, queue size, and packet loss ratio for two dynamic bandwidth...
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