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A bandwidth-based multi-source transmission load balancing method in a wireless multi-hop network

A technology of wireless multi-hop network and load transmission, applied in network traffic/resource management, wireless communication, transmission system, etc.

Active Publication Date: 2022-06-17
GUANGDONG UNIVERSITY OF FOREIGN STUDIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the multi-source simultaneous transmission of different parts of the same content by different access points needs to solve the load balancing problem of multi-source and multi-path

Method used

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  • A bandwidth-based multi-source transmission load balancing method in a wireless multi-hop network
  • A bandwidth-based multi-source transmission load balancing method in a wireless multi-hop network
  • A bandwidth-based multi-source transmission load balancing method in a wireless multi-hop network

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Experimental program
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Embodiment

[0052] like figure 1 Each node in the shown wireless multi-hop network periodically calculates its own available bandwidth (Available Bandwidth, AB) by a statistical method. The ratio of the idle time to the entire cycle time; and the available bandwidth of the neighbor node is obtained through the beacon frame (for example, the node periodically sends Hello packets to the neighbor node).

[0053] like figure 1 As shown in the schematic diagram of the content search process in the wireless multi-hop network, node R is a content requester node, and node P1 and node P2 cache target content. In the content search stage, the requester R broadcasts the request packet REP; the REP is forwarded by the nodes in the network, and reaches the content providers P1 and P2 respectively through the path R→C→A→P1 and the path R→C→B→P2; The REP records the identifier of the forwarding node, that is, the IP address of the node in the path.

[0054] like figure 2 The schematic diagram of th...

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Abstract

The invention discloses a bandwidth-based multi-source transmission load balancing method in a wireless multi-hop network. The invention proposes a node-based load balancing method based on the available bandwidth for defects such as insufficient accuracy of the existing multi-source transmission load balancing method. First, content search: the requesting node broadcasts a request packet to find content providers existing in the network, and the request packet records the node IDs passed along the way; secondly, content determination: the content provider returns a request confirmation packet, and according to the nodes and their According to the bandwidth of neighbor nodes, calculate the rate at which each content provider node should transmit content, that is, perform load balancing; again, bandwidth reservation: the requester allocates different parts of the content to be transmitted by each content provider, and notifies the content provider to Send content at a load-balanced rate and reserve bandwidth for related nodes; finally, content transmission: each content provider performs content transmission in a load-balanced manner.

Description

technical field [0001] The invention relates to the field of wireless multi-hop networks, in particular to a method for multi-source transmission in wireless multi-hop networks, and more particularly to a method for load balancing multi-source transmission in wireless multi-hop networks based on the available bandwidth of nodes . Background technique [0002] With the development of Internet technology, connecting to the Internet by wireless has gradually become the main way to access the Internet. There are many types of wireless networks. From the use of technologies, there are: cellular networks represented by 4G and 5G, wireless networks based on IEEE802.11 protocols, etc.; from the topology hop count of wireless networks: single-hop wireless networks (for example, cellular networks and WLAN), multi-hop wireless network (for example, wireless multi-hop ad hoc network based on IEEE 802.11 protocol). [0003] In a wireless multi-hop network that can access the Internet,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/08H04W28/14H04W28/26H04W40/02H04L45/16
CPCH04W28/08H04W28/14H04W28/26H04W40/02H04L45/16
Inventor 邝建丁若尧
Owner GUANGDONG UNIVERSITY OF FOREIGN STUDIES