MIMO technology was proposed as early as 1908 to cope with wireless channel fading. In 1995, Bell Labs was the first to discover the great potential of MIMO system in channel capacity, and in 1996, Foshini of Bell Labs first proposed a space-time coding scheme, i.e., the diagonal-Bell Labs hierarchical space-time model, which can obtain very high spectrum utilization, but due to the complexity of its structure, it is difficult to be applied in practice, and is now rarely investigated. 1998, P.W. Wolniansky et al. gave a simple and practical space-time coding scheme on this basis, i.e., the vertical-Bell Labs layered space-time model. In 1998, P.W. Wolniansky et al. gave a simple and practical space-time coding scheme on this basis, i.e., Vertical Bell Labs Layered Space-Time (V-BLAST, Vertical Bell Labs Layered Space-Time) model, which can obtain very high spectrum utilisation and is easy to implement, and therefore has received wide attention once it was proposed. In this paper, we focus on airtime layered codes as well as the ZF detection algorithm and the MMSE detection algorithm in VBLAST systems and improve them to further enhance the performance of the two detection algorithms through sequential serial interference cancellation.
Digital media technology is playing an increasingly important role in curriculum teaching, which provides new possibilities for the development and reform of education. This paper discusses the application of digital media technology in curriculum teaching, and points out its advantages in improving teaching quality, enhancing teacher-student interaction, promoting personalized learning, enhancing learning experience and improving teaching efficiency. However, the application of digital media technology also faces some challenges and problems, such as information overload, privacy protection, and high technical threshold, which need to be further studied and discussed. At the same time, the application of digital media technology needs to be closely combined with the teaching content of the course, and according to different course characteristics and student needs, the appropriate technology and way can be selected to achieve the best teaching effect. In the future, with the continuous development and progress of digital media technology, its application in curriculum teaching will be more extensive and in-depth. Digital media technology will be closely integrated with education, creating a more intelligent, personalized and efficient teaching environment for us, and promoting the development and progress of education. It can be seen that digital media technology has broad application prospects and potential in curriculum teaching, and it is worth our further exploration and research to make greater contributions to the development and reform of education.
With the rapid development of information technology, artificial intelligence technology is gradually being introduced in the field of education to achieve more efficient and personalized teaching. The educational concept of combining intelligence with numbers and cultivating abilities with all elements emerged in this context, aiming to promote the development and reform of education through the deep integration of artificial intelligence and education. The combination of digital and intelligent technologies emphasizes the dual role of digitalization and intelligence in the field of education, which promotes the quality and effectiveness of education through mutual promotion of digital means and intelligent technologies. Digitalization can provide education with massive data resources and efficient processing capabilities, while intelligence can achieve precise identification and satisfaction of students' personalized needs based on these data and resources. The joint cultivation of elements and abilities emphasizes the joint cultivation of literacy and abilities, that is, in the education process, not only should we focus on imparting knowledge, but also on cultivating students' literacy and abilities. Literacy includes information literacy, innovation literacy, humanistic literacy, etc., while abilities include learning ability and practical ability. Through the co cultivation of elements and abilities, students can better adapt to the development and changes of future society.
This article explores the teaching reform path based on the OBE (Output Based Education) concept, and takes the introduction of artificial intelligence in the course of "Network Marketing" as an example to illustrate. The article first introduces the background and significance of the OBE concept, emphasizing that teaching reform needs to focus on achieving learning outcomes. Then, taking the course "Online Marketing" as an example, the current problems in teaching were analysed, such as outdated teaching content and insufficient practical abilities of students. Subsequently, the article introduced artificial intelligence technology and proposed the idea and specific methods of introducing artificial intelligence in the course of "Network Marketing". Finally, the article summarizes the teaching reform path based on the OBE concept and puts forward some suggestions, providing reference for future teaching reforms. Overall, this article explores the teaching reform path based on the OBE concept by taking the introduction of artificial intelligence in the course of "Network Marketing" as an example. This reform approach helps to improve students' learning effectiveness and practical abilities, while also improving teachers' teaching level and quality.
As an important branch of artificial intelligence research, Generative Artificial Intelligence (GAI) mainly refers to artificial intelligence technology in which algorithms produce results under the given input data conditions. Generative artificial intelligence is one of the most active research directions in the field of artificial intelligence. Generative artificial intelligence has brought new technology innovation and content production mode. This paper discusses the new opportunities and challenges that generative artificial intelligence brings to the media industry from the aspects of technology realization, application status and application prospect. On this basis, it is proposed that the media industry should actively embrace and use generative artificial intelligence to promote its own intelligent transformation and achieve intelligent matching between information production mode and user needs.
Based on the SPH method, this paper investigates a number of key issues in shock dynamics, including the nonlinear phenomenon and its influencing factors in the propagation process of shock waves, and the process and mechanism of the interaction between shock waves and the surface of an object. Through the design of the experiments and the analysis of the results, the main conclusions and contributions of this study are drawn. At the same time, deficiencies and directions for further improvement are also pointed out, and prospects and suggestions for future research on impact dynamics are presented. This study is of great significance in promoting the research of impact dynamics.
With the continuous development of virtual reality technology, more and more industries are attempting to apply it to practical scenarios. E-commerce platforms, as an important component of modern commerce, have also begun to explore how to utilize virtual reality technology to enhance user experience. This article provides an overview of the current application status and trends of virtual reality technology in the field of e-commerce, analyzes the impact and mechanism of VR technology on e-commerce user experience, and explores the application modes and methods of VR technology in e-commerce platform experience. At the same time, this article also proposes corresponding countermeasures for the problems existing in VR technology in e-commerce platforms, in order to provide reference for the virtual reality of e-commerce platforms.
Thrombosis is a common pathological symptom that endangers cardiovascular and cerebrovascular health, and its essence is that blood clots in the vascular wall cause serious problems in the body. In vitro simulation of thrombosis can help us understand the composition and nature of thrombosis, and provide basis and convenience for better thrombus removal technology. This paper will discuss the existing thrombosis simulation methods and their development, and propose a new in vitro simulation of thrombosis preparation.
With the rapid development of technology, the combination of artificial intelligence (AI) and new media is changing the way we obtain and disseminate information. AI is playing an increasingly important role in news production, content recommendation, social media analysis, false information identification, image and video content understanding, user behavior prediction, and innovative applications of robots in news media. This article will discuss in detail the integration of AI and new media, and the impact of this integration on our society.
This paper studies the urban renewal planning and construction of the historic districts along the Beijing-Hangzhou Grand Canal in Hangzhou, taking the two cases of Qiaoxi Historic District and Dadu Road Historic District as the objects, and analyses the planning and design strategies and specific practices of urban renewal and restoration. From the perspectives of economic, social and environmental sustainability, it summaries the successful experience of old city development along the canal in Hangzhou and puts forward further suggestions.