Please use this identifier to cite or link to this item:
Title: Backup Radio Placement for Optical Fault Tolerance in Hybrid Wireless-Optical Broadband Access Networks
Keywords: Optical fault-tolerance, Metropolitan WOBAN, Integer Linear Programing
Issue Date: 30-Jun-2010
Citation: TRUONG HUYNH NHAN (2010-06-30). Backup Radio Placement for Optical Fault Tolerance in Hybrid Wireless-Optical Broadband Access Networks. ScholarBank@NUS Repository.
Abstract: Hybrid Wireless-Optical Broadband Access Network (WOBAN) is a new and promising architecture for next generation broadband access technology. This thesis introduces a new approach to tackle fault-tolerance provisioning in WOBAN. Back-up radios are deployed at selected existing nodes in the Wireless Mesh Network front end of WOBAN to create a dedicated wireless back-up channel to protect the network from fiber failures. Each ONU is wirelessly connected to another ONU in a multi-hop way, hence fully protected. We prove that to provide full protection while minimizing backup radio deployment cost is NP-complete. We develop an integer linear programming to obtain the optimal solution and two heuristics to reduce computation complexity. To evaluate our heuristic algorithms, we run simulation on real and random networks. The simulation results show that our approach gives a more feasible and cost-effective way to provide optical fault-tolerance compared to traditional PON and other existing solutions.
Appears in Collections:Master's Theses (Open)

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Nhan Truong - final master thesis.pdf6.51 MBAdobe PDF



Page view(s)

checked on Apr 21, 2019


checked on Apr 21, 2019

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.