A low-cost howban wireless function deployment method with survivability awareness

Abstract

The invention relates to a method for wireless function deployment of a low-cost HOWBAN (Hybrid Optical-Wireless Broadband Access Network) with survivable perception, belonging to the technical field of optical wireless hybrid network communication. The method aims at the problems that the existing survivable protection mechanism cannot carry out reasonable wireless function deployment on ONUs (Optical Network Unit) thereof according to the survivability guarantee level of a network, and data affected by a fault is only forwarded between some ONUs, and the wireless function deployment is carried out on all ONUs in the network to cause reduction of the network resource utilization rate and higher deployment cost, and furthermore, a quantitative analysis method is adopted to evaluate the network survivability, so that the network reliability is obtained by accurately quantizing the current wireless function deployment condition of the ONUs, and thus a multi-target optimization method is utilized to effectively balance the network cost and the network reliability, and the wireless function deployment of the ONUs is completed with the maximum resource utilization rate as a target. According to the method, the network survivability can be met while the purposes of improving the network resource utilization rate and reducing the network cost are achieved.

Description

technical field [0001] The invention belongs to the technical field of optical wireless hybrid network communication, and relates to a low-cost HOWBAN wireless function deployment method with survivability awareness. Background technique [0002] With the development of communication technology and the rapid popularization of multimedia services, the access network begins to change to high bandwidth and high mobility. At the same time, network operators also need to reduce access costs and improve service quality. Under the trend of broadband mobility and mobile broadband, the integration of optical fiber and wireless access network has attracted extensive attention of researchers at home and abroad. Hybrid Optical-Wireless Broadband Access Network (HOWBAN) combines the low cost, high bandwidth and high reliability of optical networks with the high mobility and high flexibility of wireless networks, and has become the next generation access network. One of the important sol...

AI Technical Summary

Problems solved by technology

However, the above-mentioned mechanisms all assume that the ONUs in the network have wireless functions, and it is impossible to deploy reasonable wireless functions for the ONUs according to the degree of network survivability guarantee.

At the same time, due to the influence of the failure probability of the branch line fiber, the data affected by the failure is often only forwarded between some ONUs. Deploying wireless functions on all ONUs in the network will reduce the utilization of network resources and increase the deployment cost.

[0006] In practical applications, ONUs without wireless functions cannot use wireless paths to complete data forwarding, making them unable to provide protection for faulty branch optical fibers; at the same time, due to differences in the impact of each ONU on network survivability, ONUs that have little impact on network survivability Deploying wireless functions on ONUs will cause waste of network resources and increase network costs

It can be seen that the wireless function deployment of ONU in the network will directly affect the network survivability and network cost

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