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Node message forwarding method considering network node energy and caching

A message forwarding, network node technology, applied in network topology, energy consumption reduction, advanced technology and other directions, can solve the problem of insufficient consideration of node resource limitation and other problems

Inactive Publication Date: 2016-06-22
邓振涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing opportunistic routing mechanisms do not fully consider the resource constraints of nodes or only consider one of the factors. How to invent an opportunistic routing protocol that takes energy and caching into consideration is one of the important research and development topics in the current industry.

Method used

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  • Node message forwarding method considering network node energy and caching
  • Node message forwarding method considering network node energy and caching
  • Node message forwarding method considering network node energy and caching

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Embodiment Construction

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

[0033] In the mobile crowd sensing network, the network is modeled as a weighted graph G(V, H), where V is the set of all nodes in the network, and H is the set of edges of all node pairs. The source node S forwards the generated message m to the destination node D through multiple relay nodes, divides all nodes in the mobile crowd sensing network into N communities, extracts the community attributes of each node, and each node has Carries a tag with its community. refer to figure 1 , when the relay node i encounters node j in the process of forwarding the message m carried by it to the destination node D, the forwarding decision is made as follows:

[0034] (1) Determine whether j is the destination node D, if so, directly forward the message m to D, and update the global and local metrics of the source node S and destination node D, otherwise, execu...

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Abstract

A node message forwarding method considering network node energy and caching is disclosed. All the nodes in a mobile group intelligence sensing network are divided into a plurality of communities. Through comparing overall measurement of the nodes outside the community where a target node is located, a message is forwarded to a node with high overall measurement. Through comparing local measurement of the nodes in the community where the target node is located, the message is forwarded to a node with high local measurement. The overall measurement of each node is acquired according to a global center degree of the node, node residual energy and residual caching. The local measurement of each node is acquired according to the global center degree of the node, the node residual energy and the residual caching. A node sending the message and a node receiving the message update the overall measurement and the local measurement according to the node residual energy and the residual caching after forwarding the message. By using the message forwarding method, a route decision of the node can be reasonably guided, overall network performance is increased and optimization configuration of network resources is realized.

Description

technical field [0001] The invention relates to a mobile crowd sensing network (MCSN), in particular to a node message forwarding method taking into account both network node energy and cache. Background technique [0002] In recent years, mobile smart terminals have penetrated into every aspect of our daily lives. Due to the rapid development of microelectronics technology and short-range wireless communication, mobile terminals carry abundant sensors and can communicate directly with other terminals. Many large-scale perception tasks that were previously unachievable can be easily realized through the mutual cooperation between mobile smart terminals. This means that people have entered the era of crowd-sensing, and this network is called mobile crowd-sensing network MCSN. For some tasks, the sensing data can be directly uploaded to the server or the sensing platform. However, there are many other application tasks. Due to various reasons such as network status, cost, et...

Claims

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Application Information

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IPC IPC(8): H04W40/10H04W40/02H04W40/22
CPCH04W40/02H04W40/10H04W40/22H04W84/18Y02D30/70
Inventor 马华红郑国强吴红海冀保峰彭勃李佩佩沈森李济顺薛玉君王玉婷
Owner 邓振涛
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