QoS Provisioning Techniques for Future Fiber-Wireless (FiWi) Access Networks

Maier, Martin; Ghazisaidi, Navid

doi:10.3390/fi2020126

Cited by 10 publications

(2 citation statements)

References 50 publications

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“…In the downstream direction, EPON is a point-to-multipoint network; the OLT broadcasts control messages and data packets to all ONUs through a passive splitter. In the upstream direction, EPON is a multipoint-to-point network; multiple ONUs transmit data to the OLT through a passive combiner [11]. Figure 2 shows a schematic view of the proposed EPON-based communication network for WPF [12].…”

Section: Ethernet Passive Optical Network (Epon)-based Communication mentioning

confidence: 99%

Communication Network Architectures Based on Ethernet Passive Optical Network for Offshore Wind Power Farms

et al. 2016

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Nowadays, with large-scale offshore wind power farms (WPFs) becoming a reality, more efforts are needed to maintain a reliable communication network for WPF monitoring. Deployment topologies, redundancy, and network availability are the main items to enhance the communication reliability between wind turbines (WTs) and control centers. Traditional communication networks for monitoring and control (i.e., supervisory control and data acquisition (SCADA) systems) using switched gigabit Ethernet will not be sufficient for the huge amount of data passing through the network. In this paper, the optical power budget, optical path loss, reliability, and network cost of the proposed Ethernet Passive Optical Network (EPON)-based communication network for small-size offshore WPFs have been evaluated for five different network architectures. The proposed network model consists of an optical network unit device (ONU) deployed on the WT side for collecting data from different internal networks. All ONUs from different WTs are connected to a central optical line terminal (OLT), placed in the control center. There are no active electronic elements used between the ONUs and the OLT, which reduces the costs and complexity of maintenance and deployment. As fiber access networks without any protection are characterized by poor reliability, three different protection schemes have been configured, explained, and discussed. Considering the cost of network components, the total implementation expense of different architectures with, or without, protection have been calculated and compared. The proposed network model can significantly contribute to the communication network architecture for next generation WPFs.

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Section: Ethernet Passive Optical Network (Epon)-based Communication mentioning

confidence: 99%

Communication Network Architectures Based on Ethernet Passive Optical Network for Offshore Wind Power Farms

et al. 2016

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“…This mechanism has been studied through simulation and proved to provide a better performance in terms of delay and throughput, compared to the Independent Scheduling (IS) mechanism which is used for the transmission scheduling between EPON and WiMAX. Similar studies that evaluate the delay performance of EPON-WiMAX with QoS support through simulation are presented in [13][14][15][16], where different scheduling and/or bandwidth allocation schemes are proposed.…”

Section: Related Workmentioning

confidence: 99%

Delay analysis of converged optical‐wireless networks with quality of service support

Vardakas

Moscholios

Logothetis

et al. 2014

IET Circuits, Devices & Systems

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The convergence of two popular access technologies, namely Worldwide interoperability for Microwave Access (WiMAX) and passive optical network (PON) is a promising access solution that combines the mobility feature of WiMAX and the ample bandwidth of PONs. In such a converged optical-wireless access network, the provision of quality of service (QoS) support is a challenging issue, mainly because of the different bandwidth allocation mechanisms of the two access technologies. Since the considered convergence seems to be dominant, it deserves assiduous analysis and evaluation. In this study, the authors investigate the delay performance of a converged optical-wireless network that provides QoS support by considering multiple service-classes with different priorities. In the wireless domain, the IEEE 802.16 standard is applied, whereas in the optical domain a wavelength division multiplexing ethernet PON provides connectivity to both wired and wireless users. The authors present an analytical framework for the calculation of the average end-to-end packet delay of each service-class, by developing two queuing models for each domain of the converged network. The end-to-end delay is calculated as the sum of the queuing delay in both domains, and the transmission and propagation delay in the optical domain. The accuracy of the proposed analysis has been verified by simulation and found to be quite satisfactory.

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Proposed an efficient multilevel dynamic bandwidth allocation (M-DBA) scheme for FiWi networks

Abed¹,

Al-Dujaili

Abbas³

2022

Opt Quant Electron

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QoS Provisioning Techniques for Future Fiber-Wireless (FiWi) Access Networks

Cited by 10 publications

References 50 publications

Communication Network Architectures Based on Ethernet Passive Optical Network for Offshore Wind Power Farms

Communication Network Architectures Based on Ethernet Passive Optical Network for Offshore Wind Power Farms

Delay analysis of converged optical‐wireless networks with quality of service support

Proposed an efficient multilevel dynamic bandwidth allocation (M-DBA) scheme for FiWi networks

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