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An energy-efficient cooperative multicast routing method for multi-hop wireless networks

A multi-hop wireless network and cooperative group technology, applied in the field of energy-efficient cooperative multicast routing, can solve problems such as low energy efficiency and high energy consumption of multi-hop wireless multicast networks

Active Publication Date: 2022-07-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

Therefore, it is difficult for existing methods to solve the problems of high energy consumption and low energy efficiency in multi-hop wireless multicast networks. efficient communication

Method used

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  • An energy-efficient cooperative multicast routing method for multi-hop wireless networks
  • An energy-efficient cooperative multicast routing method for multi-hop wireless networks
  • An energy-efficient cooperative multicast routing method for multi-hop wireless networks

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Embodiment

[0107] There are Q nodes in a multi-hop wireless network, and Q is set to 30, 40, 50, 60 and 70 respectively. All nodes are randomly distributed within a 15km x 15km square area. The present invention assumes that the link fading factor α=2, the destination node is from 1 to h, where h is much smaller than Q and h is at most 5, that is, there is a destination node at most. The present invention assumes that the received power is a constant value, and the threshold of the signal-to-noise ratio is set to 1. The relevant variable parameters are the network size and the randomly set destination nodes. The flow chart of the unicast routing method is as follows Figure 7 shown, the specific steps are as follows:

[0108] Step 1: Use the MIP algorithm to establish all communication paths with minimum energy consumption between the source node and all destination nodes, that is, build a multicast tree with minimum energy consumption, such as Figure 8 shown. The optimal communica...

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Abstract

The invention discloses an energy-efficient cooperative multicast routing method for multi-hop wireless networks, belonging to the technical field of routing in multi-hop wireless networks, in particular to an energy-efficient cooperative multicast routing method for multi-hop wireless networks. This method is based on topology control and network node cooperation, and is also called an energy-efficient multicast routing method based on topology control and cooperation, which improves the multicast performance of multi-hop wireless networks. The present invention proposes to periodically sleep network nodes to reduce network consumption, thereby improving network energy efficiency. The present invention proposes a reasonable periodic dormancy mechanism to allow network nodes to work alternately and ensure more efficient use of energy on the premise of not affecting the normal operation of the network. By combining this sleep mechanism with the topology control-based minimum energy consumption multicast routing algorithm (TPM, ), the energy consumption of multicast is significantly reduced and the network energy efficiency is improved. Compared with the existing method, the invention has better energy efficiency and performance improvement.

Description

technical field [0001] The invention belongs to the technical field of routing in multi-hop wireless networks, and particularly relates to an energy-efficient cooperative multicast routing method for multi-hop wireless networks. Background technique [0002] With the rapid development of artificial intelligence and big data technologies, various new services have grown exponentially, and carrying such huge network service demands requires huge energy consumption of the communication network. Therefore, the high energy consumption has seriously affected the performance of the communication network, especially for the multi-hop wireless multicast network with limited node energy, its high energy consumption has directly affected the connectivity and survivability of the multi-hop multicast network. How to construct energy-efficient multicast communication for multi-hop wireless networks has become an important issue in the current communication network field. Routing design h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W40/04H04W40/08H04L45/12H04L45/16
CPCH04W40/04H04W40/08H04L45/123H04L45/16Y02D30/00Y02D30/70
Inventor 李源峰蒋定德王雨晴王丰刘恒
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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