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Self-organizing network time-frequency resource scheduling method supporting resource fragment reduction

A technology of self-organizing network and resource fragmentation, which is applied in the field of time-frequency resource scheduling of self-organizing network and resource allocation of links between nodes in multi-channel self-organizing network. Cause impact, resources can not be used reasonably, etc., to achieve the effect of reducing resource fragments, improving channel reuse rate, and low overhead

Active Publication Date: 2019-08-30
XIDIAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this method is that the randomness of the node selection channel cannot guarantee that the resources are fully utilized
The disadvantage of this method is that although the throughput of the network is improved to a certain extent, and the packet loss rate and delay are reduced, but the channel with the highest income is selected for transmission. Allocation is affected, and there will be situations where resources cannot be used rationally

Method used

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  • Self-organizing network time-frequency resource scheduling method supporting resource fragment reduction
  • Self-organizing network time-frequency resource scheduling method supporting resource fragment reduction
  • Self-organizing network time-frequency resource scheduling method supporting resource fragment reduction

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Embodiment Construction

[0044] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0045]In the prior art, the sending node does not perform the sending end detection in the present invention on the time-frequency resource block to be reserved, and the receiving node does not perform the receiving end detection before the time slot confirmation information returned by the receiving node, and due to the randomness of resource allocation, in the self When organizing network resource allocation, resource fragments will be generated, which will affect the full utilization of time-frequency resources and cause waste of resources. The resource fragmentation refers to the situation that during the allocation of USAP link resources, there will be idle time-frequency resources due to unreasonable resource allocation but cannot be allocated and used due to time slot conflicts. These idle and unavailable time-frequency resources are call...

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Abstract

The invention discloses a self-organizing network time-frequency resource scheduling method supporting resource fragment reduction, and mainly solves the problems of resource fragment generation, influence on full utilization of time-frequency resources and resource waste in self-organizing network resource distribution of a conventional USAP (Uniform Time Slot Allocation Protocol). According to the implementation scheme, the method comprises the steps of obtaining resource occupation information of nodes in two hops and resource demand information between the nodes by utilizing information interaction between the nodes; establishing a resource information table for each node in the ad hoc network by using the acquired resource occupation information and resource demand information; enabling the sending end to reserve a time slot and carry out detection; and enabling the receiving end to confirm the time slot and carry out detection. According to the method, the generation of resourcefragments is reduced, link resources can be fully utilized, the channel multiplexing rate is improved, and the method can be used for resource allocation of links between nodes in a multi-channel self-organizing network.

Description

technical field [0001] The invention belongs to the technical field of communication, and further relates to a time-frequency resource scheduling method of an ad hoc network, which can be used for resource allocation of links between nodes in a multi-channel ad hoc network. Background technique [0002] The Unified Time Slot Assignment Protocol USAP is a dynamically distributed time division multiple access MAC protocol that supports multi-hop and multi-channel. USAP is a link-oriented time slot allocation protocol, which allows the transmission node to select several time slots from unoccupied time slots for communication with neighboring nodes, and coordinates the time slot reservation of nodes within two hops and confirmation method to ensure that there is no conflict in the transmission between nodes, but the existing USAP protocol can only guarantee conflict-free transmission data, and cannot guarantee that resources are maximized. [0003] Xidian University proposed a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W48/10H04W72/12H04W72/04
CPCH04W48/10H04W72/0446H04W72/0453H04W72/52
Inventor 史琰张腾飞盛敏刘俊宇郝琪文娟李小鹏
Owner XIDIAN UNIV
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