Recently, the academic paper “a blockchain based computing architecture for mobile ad hoc cloud” written by Dr. Jiao Zhenzhen, who is the first author, was employed by IEEE network, a top SCI journal.
This paper expounds and demonstrates the key theory and technology of building IOT node self-organizing cloud based on blockchain for the first time at home and abroad.
Self organizing cloud is a computing paradigm in which multiple IOT devices spontaneously form a local computing resource pool and carry out computing cooperation and resource sharing. In the scenario of weak network coverage or application with ultra-low delay demand, IOT nodes often can’t rely on remote cloud services to provide timely computing support. At this time, they can use local self-organizing cloud to help themselves to complete computing tasks more efficiently with the help of idle resources of other devices around them.
For example,In the driverless scene,Real time driverless decision-making needs powerful computing power and massive workshop real-time shared data support. However, the computing power of a single unmanned vehicle is limited, and the remote support of cloud or edge end may encounter the problems of network jitter, uneven network coverage and high network delay, all of which bring risks to unmanned driving. Another example is the formation of the UAVUAV clusterIn the task execution area, there may be a lack of network support with sufficient bandwidth (such as enemy occupied area, wilderness, sea, etc.). When it is necessary to perform high computational tasks such as face capture or situation recognition, the computing power of a single UAV may be difficult to support efficiently, and the cloud is not available at this time. In the above two scenarios, the unmanned vehicle and UAV can use the self-organizing cloud technology to form a cooperative resource pool with the surrounding devices to maximize the use of local computing resources. Even when the network is available, making good use of localization cooperation can reduce the cloud to end response delay, reduce the pressure on the backbone network and edge servers, and improve the response speed and efficiency of local computing.
Self organizing cloud technology can also be applied toMonitoring coverage scenarios in remote areas such as oil fields and power gridsIn this kind of scenario, a large number of deployed monitoring devices are usually edge computing devices working under weak network coverage, which process and upload the massive data generated locally. However, due to the variability of the monitoring state, these devices may encounter sudden data explosion, which will instantly exceed their processing capacity, which will bring a variety of risks. At this time, if the self-organizing cloud resource pool technology can be used, the local processing capacity can be dynamically improved, and there is no need to increase the capacity of devices and networks in daily situations.
However, the existing self-organizing cloud technology has security and privacy risks that can not be ignored, which limits its wide application. For example, in the scene of unmanned vehicle, the vehicles next to them often belong to different people, and the existing technology can not ensure that they complete the sharing of secure, trusted and private computing resources.
Although it is increasingly common to use blockchain technology to solve the security and data privacy problems of the Internet of things, the existing blockchain technology can only build a secure computing environment in the Internet environment, and the existing consensus mechanism can not support it to achieve secure and efficient consensus in the self-organizing network with stronger dynamic than the Internet.
To solve this problem, this paper proposes a secure and efficient self-organizing cloud computing framework based on blockchain. This paper analyzes and quantifies the low efficiency of blockchain in high dynamic ad hoc network for the first time at home and abroad, analyzes the construction mechanism of blockchain in ad hoc network, and proposes a node dynamic aware consensus mechanism based on the mobile characteristics of nodes. Finally, experiments show that the consensus mechanism can significantly improve the TPS and packaging efficiency of blockchain in ad hoc network under the premise of ensuring security.
IEEE network is a SCI journal with an impact factor of 7.503, ranking in the forefront of the computer field. The cooperation units of this article are the blockchain center of Institute of computing technology, Institute of digital economy and industry, Chinese Academy of Sciences, University of Chinese Academy of Sciences, etc.
This article has been employed by the top journals in the computer field, which proves that the original theory and technology of Zhongke Wuyuan in the field of blockchain has been highly recognized by the academic circles, and also reflects the leading position of Zhongke Wuyuan in the field of blockchain, especially in the field of integration technology of blockchain and Internet of things.
The pictures come from the Internet
The following is a summary of the original text:
Abstract: Mobile ad-hoc cloud can exploit the computing resources (e.g., smartphones, vehicles, and unmanned systems) scattered in mobile environment to form a self-organized ad-hoc local resource pool for providing opportunistic computing services. However, the highly dynamic and distributed characteristics of mobile ad-hoc network environment bring great challenges in privacy and security in such opportunistic resource sharing. In this article, we first discuss the attractive features of blockchain for providing such resource sharing services in mobile ad-hoc network environment in a secure and trustful way and then discuss the problems caused when using existing consensus protocols in such environment. We accordingly devise a blockchain based trustful mobile ad-hoc cloud architecture, AdChain cloud. We describe the functions at different layers in this architecture, including network layer, blockchain layer, and smart contract layer. To adapt to the high dynamics of mobile ad-hoc network environment, we design a stability-aware consensus protocol at the blockchain layer. Simulation results show that our solution can achieve improved performance as compared with existing work.
Zhongke Wuyuan is a high-tech enterprise incubated and participated in by the Institute of computing, Chinese Academy of Sciences. It has independent intellectual property rights, safe and controllable original underlying technology of blockchain, which solves the key technical problems of massive data, such as high-efficiency and full amount storage on the chain. The related technology has been applied in many fields such as supply chain finance, politics and so on.