Resource sharing of mobile edge computing networks based on auction game and blockchain

The edge clouds in mobile edge computing networks are isolate which may belong to different companies or organizations, and hence the communication, computation, and storage resources are not efficiently utilized. To solve this problem, we propose the resource-sharing model of edge clouds which is based on blockchain technology and auction game. In this model, the blockchain platform is regarded as the bridge of the resource sharing, composed of edge clouds, clouds, third-party spectrum and computation management, identity authentication institutions, etc. It is used to record the users’ transaction information and broadcast the intelligent terminals’ resource requirements to all edge clouds in the blockchain platform through smart contracts. Then, an optimization problem of the joint allocation of communication and computation resources is formulated to maximize the utility of intelligent terminals. And an efficient improved sealed second-price auction game is proposed to allocate communication and computation resources and determine the optimal price of resources under the intelligent terminals’ QoS constraints. Simulation results show that the model can effectively improve the system resources utilization and the successful transaction rate.

The Effect of Auction Game on Students’ Understanding of Simple Past Tense

The aim of this research was to investigate the effect of auction game on students’ understanding of simple past tense at the eighth grade of MTs. Jabal Nur Kandis. The population of this research was the second year students of MTs. Jabal Nur Kandis consisting of two classes which had 48 students. The sample of this research were VIII A (24 students) as experimental class 1 and VIII B (24 students) as experimental class 2. The researchers applied auction game variation 1 in experimental class 1 while; in experimental class 2 the researcher applied auction game variation 2. The data was the students’ scores in simple past tense taken from the post test. The data was analyzed by using Normality-test, Homogeneity-test, T-test and N-gain. After conducting this research, it was found that the result of n-gain average score in experimental class is 0.39. The Assimp.Sig (2-tailed) is 0.195. So the hyphothesis H01 was accepted and Ha1 is rejected. With the Assimp.Sig (2-tailed) >0.05 it meant there was no any significant effect of the implementation of Auction game (variation 1 and variation 2) on students’ understanding of simple past tense. In conclusion, there was no any significant effect of the implementation of auction Game on students understanding of simple past tense at the eighth grade of MTs. Jabal Nur Kandis. But, auction game can improve students’ understanding on simple past tense.