Optimal distribution method for optical network units in optical fiber wireless hybrid access network

Abstract

The invention provides an optimal distribution method for optical network units (ONU) in an optical fiber wireless hybrid access network. A peer-to-peer communication mode among wireless terminals in the optical fiber wireless hybrid access network and communication between the wireless terminals and the Internet are combined. The method comprises the following steps of: acquiring parameters of an optical fiber sub-network, a wireless mesh sub-network, the total number of the ONUs to be distributed and available positions for the distribution of the ONUs; representing the optical fiber wireless hybrid wireless network into a directed graph according to the acquired parameters; establishing a mixed-integer-linear-programming-based optimal distribution mathematical model for the ONUs according to the directed graph; performing resolution by utilizing an integer linear programming resolution method; and acquiring the optimal distribution positions of the ONUs. By the method in the embodiment of the invention, the number of wireless paths of transmission paths for peer-to-peer communication among the wireless terminals in the wireless mesh sub-network is decreased, signal interference among links of the wireless mesh sub-network is reduced, and network throughput is improved.

Description

technical field [0001] The invention relates to the technical field of optical fiber wireless hybrid access network, in particular to a method for optimizing the arrangement of optical network units in the optical fiber wireless hybrid access network. Background technique [0002] In recent years, due to the rapid development of network applications and the continuous application of new technologies, people not only have an increasing demand for transmission bandwidth, but also put forward higher requirements for real-time access to the network. An Ethernet-based passive optical network usually includes: an optical line terminal (Optical Line Terminal, OLT) used to receive optical signals from and to the Internet, and a A remote node (Remote Node, RN) for optical signals, and a group of Optical Network Units (Optical Network Units, ONU) for receiving and sending optical signals from the remote nodes. Ethernet-based passive optical network technology has the advantages of be...

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Problems solved by technology

[0006] In view of this, the present invention provides a method for optimizing the arrangement of optical network units in an optical fiber and wireless hybrid access network, which is used to solve the problem that the existing method only considers the communication between the wireless network terminal and the Internet, which leads to the improvement of network throughput. underperforming problems

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