Trust construction method for accelerating trust convergence

A construction method and trust value technology, applied in the field of communication networks, can solve problems such as poor working channels

Inactive Publication Date: 2011-05-04
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

However, some existing trust management frameworks are difficult to adapt to the dynamic trust relationship of mobile ad hoc networks. These dynamics are mainly manifested in the following aspects, such as nodes exiting the network due to some reasons such a

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  • Trust construction method for accelerating trust convergence
  • Trust construction method for accelerating trust convergence
  • Trust construction method for accelerating trust convergence

Examples

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example

[0066] The following is an example to illustrate the specific implementation of the trust building method for accelerating trust convergence. The main requirement is to take the comprehensive trust value of node A to node C in the fourth timing cycle.

[0067] Such as figure 2 As shown, the figure is a topology diagram of a wireless Ad Hoc network. Assume that the threshold value w is 3, the time period is 1s, and the direct trust weight and recommended trust weight are both 0.5. This example mainly introduces the comprehensive trust value. Node B observes the working behavior of node C through the supervision mechanism as shown in Table 1

[0068]

[0069] Table 1 Node B observes node C work behavior data

[0070] For the convenience of calculation, in this example, node A obtains the recommended behavior data of node B and node A obtains the work behavior data of node C, which is the same as Table 1.

[0071] 2. Refer to Table 1 to obtain the probability of the workin...

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Abstract

The invention discloses a trust construction method for accelerating trust convergence. In the trust construction method, in view of the fact that the trust relation among various nodes of an MANET (mobile ad hoc network) has dynamics, the trust relation can dynamically change at all times along with various factors such as network topological transformation, member variation, energy attenuation and the like, thus the history trust values of the nodes in the network are counted, the variation tendency of the trust values in the latest time period is obtained through analyzing the history trust values, and the tendency of the trust values is generated by the method provided by the invention, so that the trust values of the nodes at the current time are calculated by using the tendency of the trust values, and the trust values comprises direct trust values and recommend trust values, thereby effectively and fast estimating the newest comprehensive trust value of each dynamically-changednode. By using the trust construction method, bad nodes can be fast detected, the packet loss rate is inhibited, the transmitting rate is promoted, and the throughput of the whole network and the efficiency of searching routes can be finally improved. Thus, the trust construction method has important practical value in an actual network route.

Description

technical field [0001] The invention belongs to the field of communication networks, and in particular relates to a trust building method for accelerating the trust convergence of a wireless self-organizing network. Background technique [0002] One of the most important characteristics of the mobile ad hoc network is its dynamics, and the trust relationship established by each node on this basis is also dynamic. However, some existing trust management frameworks are difficult to adapt to the dynamic trust relationship in mobile ad hoc networks. These dynamics are mainly manifested in the following aspects, such as nodes exiting the network due to some reasons such as exhaustion of their own energy or other circumstances, or New unverified nodes are added to the network. Another example is that a node has a poor working channel in a certain position, and then the working channel becomes better when it moves to another position. At the same time, in the mobile ad-hoc network...

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Application Information

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IPC IPC(8): H04W12/00H04W24/04H04W84/18H04W12/60
Inventor 喻莉钱聪刘祖浩熊飞程伟姜烈
Owner HUAZHONG UNIV OF SCI & TECH
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