Improved passive optical network architectures to support local area network emulation and protection

2005 ◽  
Author(s):  
Elaine Wong ◽  
Nishaanthan Nadarajah ◽  
Chang-Joon Chae ◽  
Ampalavanapillai Nirmalathas ◽  
Sanjeewa M. Attygalle
Keyword(s):  
Local Area Network ◽  
Optical Network ◽  
Local Area ◽  
Passive Optical Network ◽  
Area Network ◽  
Network Architectures ◽  
Network Emulation

scholarly journals Highest Cost First-Based QoS Mapping Scheme for Fiber Wireless Architecture

Photonics ◽  
2020 ◽  
Vol 7 (4) ◽  
pp. 114
Author(s):  
Khalid.H. Mohammadani ◽  
Rizwan Aslam Butt ◽  
Kamran Ali Memon ◽  
Fayaz Hassan ◽  
Abdul Majeed ◽  
...  
Keyword(s):  
High Speed ◽  
Wireless Local Area Network ◽  
Local Area Network ◽  
Optical Network ◽  
Access Network ◽  
Local Area ◽  
Passive Optical Network ◽  
Area Network ◽  
Broadband Wireless ◽  
Dynamic Bandwidth Assignment

The combination of a high-speed wireless network with passive optical network technologies has led to the evolution of a modern integrated fiber wireless (FiWi) access network. Compared to broadband wireless networks, the FiWi network offers higher bandwidth with improved reliability and reduced maintenance costs due to the passive nature of passive optical network (PON). Since the quality of service (QoS) is a baseline to deploy high-speed FiWi broadband access networks, therefore, it is essential to analyze and reduce the typical problems (e.g., bandwidth and delay) in the high-speed next-generation networks (NGANs). This study investigates the performance of a fiber wireless architecture where a 10-Gigabit-capable passive optical network (XGPON) and fifth generation of wireless local area network (WLAN) (i.e., IEEE 802.11ac) are integrated. Both technologies take benefits from each other and have pros and cons concerning the QoS demands of subscribers. The proposed work offers a very flexible QoS scheme for the different types of services of 5G WLAN and XGPON with the help of the highest cost first (HCF) algorithm, which leads to reduced upstream delays for delay-sensitive applications. The simulation results show that the HCF algorithm boosts the performance of the dynamic bandwidth assignment (DBA) scheme and results in up to 96.1%, 90.8%, and 55.5% reduced upstream (US) delays for video: VI(T2), background: BK(T3), and best effort: BE(T4) traffic in enhanced-distributed-channel-access (EDCA) mode. Compared to earlier work, the HCF and immediate allocation with the colorless grant (IACG) DBA combination results in the reduction of up to 54.8% and 53.4% mean US delays. This happens because of 50% to 65% better bandwidth assignment by the IACG DBA process due to efficient mapping by the HCF algorithm.

A novel local area network emulation technique on passive optical networks

2005 ◽  
Vol 17 (5) ◽  
pp. 1121-1123 ◽  
Author(s):  
N. Nadarajah ◽  
M. Attyg ◽  
A. Nirmalathas ◽  
Elaine Wong
Keyword(s):  
Optical Networks ◽  
Local Area Network ◽  
Local Area ◽  
Passive Optical Networks ◽  
Area Network ◽  
Network Emulation

Protection switching and local area network emulation in passive optical networks

2006 ◽  
Vol 24 (5) ◽  
pp. 1955-1967 ◽  
Author(s):  
N. Nadarajah ◽  
E. Wong ◽  
M. Attygalle ◽  
A. Nirmalathas
Keyword(s):  
Optical Networks ◽  
Local Area Network ◽  
Local Area ◽  
Passive Optical Networks ◽  
Area Network ◽  
Network Emulation

scholarly journals Passive Optical Network: A Fibre to the ‘X’ Approach

2021 ◽  
Vol 6 (3) ◽  
pp. 1-9
Author(s):  
R. O. Okeke ◽  
V. E. Idigo ◽  
M. O. Akemi ◽  
S. K. Ogbuokebe
Keyword(s):  
Wavelength Division Multiplexing ◽  
Local Area Network ◽  
Optical Network ◽  
Access Network ◽  
High Capacity ◽  
Video On Demand ◽  
Passive Optical Network ◽  
Digital Television ◽  
Area Network ◽  
High Definition

With the rapid increasing bandwidth demand mainly driven by the development of advanced broadband multimedia application, such as video-on-demand (VoD), interactive high-definition digital television (HDTV) and video conference, new access network solutions that provide high capacity are highly needed to satisfy these emerging services. In a largely populated and technologically exposed institution such the University of Port Harcourt, this demand is truly great. The Passive Optical Network (PON), which utilizes the Fibre Optic Technology, is a suitable solution to this problem. Hence this is geared towards the design and simulation of a Passive Optical Network for the University’s campus district. This Campus based Local Area Network consists of the Various Faculty buildings, the Senate building which is the central administrative building, and was centralized at the Information and Communication Technology Center (ICTC), which served as the Central Office of the network. The Wavelength Division Multiplexing (WDM) technique was utilized because of its dedicated bandwidth for each subscriber and more flexible bandwidth management. The validation was carried out on a virtual computation environment called OptiSystem©.

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