Adaptive Hybrid Path Search MFO Algorithm for Optical Network Unit Placement in Fiber-Wireless Access Network

2019 ◽  
Author(s):  
Puja Singh ◽  
Shashi Prakash
Keyword(s):  
Optical Network ◽  
Access Network ◽  
Wireless Access ◽  
Optical Network Unit ◽  
Wireless Access Network ◽  
Path Search

Performance Evaluation of Fiber Wireless (FiWi) Access Network using Position Optimization of ONUs

2020 ◽  
Vol 10 ◽  
Author(s):  
Nitin Chouhan ◽  
Uma Rathore Bhatt ◽  
Raksha Upadhyay
Keyword(s):  
Power Consumption ◽  
Optimization Algorithm ◽  
Optical Network ◽  
Access Network ◽  
Whale Optimization Algorithm ◽  
Wireless Access ◽  
Delivery Ratio ◽  
Packet Delivery ◽  
Whale Optimization ◽  
Wireless Access Network

: Fiber Wireless Access Network is the blend of passive optical network and wireless access network. This network provides higher capacity, better flexibility, more stability and improved reliability to the users at lower cost. Network component (such as Optical Network Unit (ONU)) placement is one of the major research issues which affects the network design, performance and cost. Considering all these concerns, we implement customized Whale Optimization Algorithm (WOA) for ONU placement. Initially whale optimization algorithm is applied to get optimized position of ONUs, which is followed by reduction of number of ONUs in the network. Reduction of ONUs is done such that with fewer number of ONUs all routers present in the network can communicate. In order to ensure the performance of the network we compute the network parameters such as Packet Delivery Ratio (PDR), Total Time for Delivering the Packets in the Network (TTDPN) and percentage reduction in power consumption for the proposed algorithm. The performance of the proposed work is compared with existing algorithms (deterministic and centrally placed ONUs with predefined hops) and has been analyzed through extensive simulation. The result shows that the proposed algorithm is superior to the other algorithms in terms of minimum required ONUs and reduced power consumption in the network with almost same packet delivery ratio and total time for delivering the packets in the network. Therefore, present work is suitable for developing cost-effective FiWi network with maintained network performance.

scholarly journals Last mile mobile hybrid optical wireless access network routing enhancement

2019 ◽  
Vol 8 (1) ◽  
pp. 188-195
Author(s):  
Adam Wong Yoon Khang ◽  
Shamsul J. Elias ◽  
J. Pusppanathan ◽  
Nadiatulhuda Zulkifli ◽  
N. H. Halim ◽  
...  
Keyword(s):  
Routing Protocol ◽  
Optical Network ◽  
Access Network ◽  
Network Capacity ◽  
Passive Optical Network ◽  
Wireless Access ◽  
Optical Wireless ◽  
Front End ◽  
Last Mile ◽  
Wireless Access Network

This study focuses on mobile ad hoc networks (MANETs) that support Internet routing protocol imposing stringent resource consumption constraints of Quality of service (QoS). The mobile Internet causes the ongoing issue of inefficient use of the MANET resources due to its random nature of wireless environments. In this paper, the new improved architecture of the last mile mobile hybrid optical-wireless access network (adLMMHOWAN) is proposed and designed to tackle the arised issues. The proposed design is based on a unified wireless-wired network solution required the deployment of MANET-based wireless fidelity (WiFi) technology at the wireless front-end and wavelengths division multiplexing passive optical network (WDM PON) at the optical backhaul. The critical performance metrics such as network capacity and energy consumption based on modified AODVUU routing protocol using OMNeT++ software is analyzed with 2 scenarios, namely the number of nodes and mobility speed. This mode of communication results in better QoS network capacity of 47.07% improvement, with 26.85% reduction of lower energy resource consumption for mobile wireless front-end over passive optical network backhaul architecture when compared with the existing work of oRiq scheme that focus on improvement in MANETs.

Performance Analysis Of Hybrid Optical–Wireless Access Network Physical Layer

2012 ◽  
Author(s):  
Redhwan Q. Shaddad ◽  
Abu Bakar Mohammad ◽  
Abdul Aziz M. Al–Hetar ◽  
Sevia M. Idrus
Keyword(s):  
Orthogonal Frequency Division Multiplexing ◽  
Optical Network ◽  
Access Network ◽  
Base Station ◽  
Passive Optical Network ◽  
Mesh Network ◽  
Wireless Access ◽  
Optical Wireless ◽  
Front End ◽  
Wireless Access Network

The hybrid optical–wireless access network (HOWAN) is a favorable architecture for next generation access network. It is an optimal combination of an optical backhaul and a wireless front–end for an efficient access network. In this paper, the new architecture of the HOWAN is proposed and designed based on both a wavelengths division multiplexing/time division multiplexing passive optical network (WDM/TDM PON) at the optical backhaul and a worldwide interoperability for microwave access (WiMAX) technology at the wireless front–end. It is demonstrated 2 Gb/s for downstream/upstream can be achieved at optical backhaul along 20 km of single mode fiber (SMF) for each wavelength channel with bit error rate (BER) of 10–9, at a data rate of 30 Mb/s per Base Station (BS) along a 5 km outdoor wireless link with BER of 10–5. Key words: Hybrid optical–wireless access network (HOWAN); Passive optical network (PON); Wavelength division multiplexing (WDM); Wireless mesh network (WMN); Orthogonal frequency division multiplexing (OFDM)

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