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Load-sensing-type routing method based on dormancy of optical network unit (ONU)

An optical network unit and load-aware technology, applied in the field of communication networks, can solve the problems of less research on load-aware routing methods, and achieve the effect of improving resource utilization

Active Publication Date: 2012-05-02
NORTHEASTERN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

In addition, the current energy-saving routing methods for wireless and optical access are independently researched, and there are few studies on load-aware routing methods based on optical network unit (ONU) sleep in HWOBAN.

Method used

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  • Load-sensing-type routing method based on dormancy of optical network unit (ONU)
  • Load-sensing-type routing method based on dormancy of optical network unit (ONU)
  • Load-sensing-type routing method based on dormancy of optical network unit (ONU)

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0033] In this embodiment, a hybrid wireless optical broadband access network is constructed first, such as figure 1 As shown, the constructed wireless optical broadband access network includes 24 nodes, wherein, there are 20 wireless routing nodes and 4 optical network unit ONU nodes, the wireless router is a single radio frequency, and the wireless links are mutually independent Interference; the activation and sleep state switching of the optical network unit ONU is completed instantaneously; only the uplink transmission and resource allocation from the wireless terminal to the optical network unit ONU are considered; the first hop wireless router (ie source node) requested by the user is in Randomly generated in the network, and the destination optical network unit ONU is obtained according to dynamic energy perception; user requests arriv...

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Abstract

The invention discloses a load-sensing-type routing method based on the dormancy of an optical network unit (ONU) and belongs to the technical field of communication networks. The load-sensing-type routing method comprises the following steps of: setting a high threshold value HW and a low threshold value LW of the working load of the ONU; if service arrives, determining a target ONU by adopting a load sensing method, calculating a route of a reached user from a first tipping wireless router to the selected target ONU, and thus finishing uplink data transmission; if the service leaves, judging whether the ONU from which the service leaves can be set in a dormancy state; and if the ONU is in the dormancy state, distributing the ONU to the residual service by adopting the load sensing method, otherwise, keeping the state unchanged. By adopting the methods for sensing the load and selecting the ONU with the maximum working load, the problem of excessive energy consumption because the conventional optical linear terminal and the ONU carry out load information polling frequently can be solved, and the ONU resource utilization rate can be increased.

Description

technical field [0001] The invention belongs to the technical field of communication networks, in particular to a load-aware routing method based on optical network unit dormancy. Background technique [0002] In recent years, video conferencing and multimedia business applications have become more frequent and widespread. Traditional access technologies have been unable to meet the growing demand for business bandwidth. The access network covering the "last mile" has become a bottleneck in providing broadband services to users. [0003] Optical fiber and wireless access have become two more reliable access network technologies, each with good advantages. Optical access network technology has the characteristics of large capacity, high bandwidth, low loss and anti-electromagnetic interference, while wireless access network technology has the advantages of low cost and high flexibility, providing users with convenient services and eliminating the cost of laying optical fibers...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04B10/12H04L12/803H04Q11/00
Inventor 侯维刚郭磊巩小雪
Owner NORTHEASTERN UNIV
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