Low-cost Optical Network Unit Deployment Strategy with Survivability Aware in Hybrid Optical-wireless Broadband Access Networks
WANG Ruyan①② LIU Hui①② WU Dapeng①② ZHANG Yan③ XIANG Luoyong③
①(Key Laboratory of Optical Communication and Network, Chongqing 400065, China) ②(School of Telecommunication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China) ③(Chongqing Institue of Telecommunications, Chongqing 401336, China)
There is a contradiction between the degree of survivability and the cost of deployment in Hybrid Optical-Wireless Broadband Access Networks (HOWBAN). To improve the network resources utilization, a low- cost Optical Network Unit (ONU) deployment strategy is proposed. According to the deployment of wireless functions in the network, the degree of network survivability and the deployment are considered in the optimization process of vector evaluated binary particle swarm optimization. Furthermore, to deploy the network with low cost while at the same time guaranteeing a high degree of survivability, the selecting of optical-network-units can be decided dynamically by the evolution of particle. The results show that low-cost ONU deployment strategy can effectively improve the network survivability, and reduce network cost.
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