A Time Slot Allocation Method Supporting Multi-Hop Streaming Services in Ad Hoc Networks

A self-organizing network and time slot allocation technology, applied in network topology, wireless communication, electrical components, etc., can solve the problem of low end-to-end throughput of multi-hop service flow, improve throughput, improve efficiency, and reduce complexity degree of effect

Active Publication Date: 2022-03-22
XIDIAN UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art, and propose a time slot allocation method supporting multi-hop streaming services in an ad hoc network to solve the problem of low end-to-end throughput for multi-hop service streams in an ad hoc network question

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  • A Time Slot Allocation Method Supporting Multi-Hop Streaming Services in Ad Hoc Networks
  • A Time Slot Allocation Method Supporting Multi-Hop Streaming Services in Ad Hoc Networks
  • A Time Slot Allocation Method Supporting Multi-Hop Streaming Services in Ad Hoc Networks

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[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] Refer to attached figure 1 , to further describe the specific steps for realizing the present invention.

[0032] Step 1, the source node triggers slot reservation.

[0033] The multiple access control layer MAC of the source node in the self-organizing network uses a perceived multi-hop service flow to construct a time slot reservation request SREQ frame and broadcast it to trigger the time slot reservation.

[0034] The multi-hop service flow includes source address, destination address, service flow type, source port number, destination port number and required bandwidth of the service flow.

[0035] The construction of the time slot reservation request SREQ frame refers to encapsulating the source address, destination address, service flow required bandwidth, path node information and available time slot set information of the path node into a data frame. ...

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Abstract

The invention discloses a method for allocating time slots supporting multi-hop streaming services in an ad hoc network. The steps for realizing the invention are: (1) a source node triggers time slot reservation; (2) an intermediate node forwards an SREQ frame; (3) ) The destination node performs end-to-end time slot allocation; (4) Planning the time slot allocation results. Because the destination node of the present invention performs unified end-to-end time slot allocation through the aggregated information of available time slot sets of all nodes on the multi-hop service flow path, it overcomes the high and complex computing power requirements of centralized time slot allocation in the prior art The problem of low end-to-end throughput of multi-hop service flow in distributed time slot allocation is high. The invention has the advantages that the method is simple and easy to realize, and can improve the end-to-end throughput of the multi-hop service flow, and can be used for the time slot allocation of the time division multiple access protocol in the wireless ad hoc network.

Description

technical field [0001] The present invention relates to the technical field of communication, and further relates to a method for allocating time slots supporting multi-hop streaming services in an ad hoc network in the technical field of wireless communication. Based on the traditional time division multiple access technology TDMA (time division multiple access) time slot allocation in self-organizing networks, the present invention searches for a multi-hop service flow for end-to-end unified time slot according to the destination node and bandwidth requirement information of the service flow. Allocation, so as to achieve the purpose of improving end-to-end high throughput. Background technique [0002] The time slot allocation method is the key technology of the TDMA multiple access protocol. For wireless ad hoc networks, there are certain problems in both the traditional hop-by-hop allocation algorithm and the centralized allocation algorithm. The hop-by-hop allocation al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/08H04W84/18
CPCH04W72/0446H04W84/18H04W72/543H04W72/20
Inventor 史琰代良全盛敏刘俊宇白卫岗文娟
Owner XIDIAN UNIV
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