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Reconfigurable intelligent surface:design the channel-a new opportunity for future wireless networks

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Digital Communications and Networks 2022年第2期8卷 87-104页

作者： Miguel Dajer Zhengxiang Ma Leonard Piazzi Narayan Prasad Xiao-Feng Qi Baoling Sheen Jin Yang Guosen Yue Wireless Access Lab Futurewei TechnologiesInc.BridgewaterNJ08807USA

In this paper,we survey state-of-the-art research outcomes in the burgeoning field of Reconfigurable Intelligent Surface(RIS),given its potential for significant performance enhancement of next-generation wireless communication networks by means of adapting a propagation *** has been placed on several aspects gating the commercial viability of future network *** summaries are provided for practical hardware design considerations and broad implications of artificial intelligence techniques,as are in-depth outlooks on the salient aspects of system models,use cases,and physical layer optimization techniques.

关键词： Reconfigurable intelligent surface MIMO Channel estimation Beamforming Reflectarray Transmitarray Machine learning Deep learning

Optimal chunk caching in network coding-based qualitative communication

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Digital Communications and Networks 2022年第1期8卷 44-50页

作者： Lijun Dong Richard Li futurewei Technologies Inc. 2330 Central ExpresswaySanta Clara95050USA

Network processing in the current Internet is at the entirety of the data packet,which is problematic when encountering network *** newly proposed Internet service named Qualitative Communication changes the network processing paradigm to an even finer granularity,namely chunk level,which obsoletes many existing networking policies and schemes,especially the caching algorithms and cache replacement policies that have been extensively explored in Web Caching,Content Delivery Networks(CDN)or Information-Centric Networks(ICN).This paper outlines all the new factors that are brought by random linear network coding-based Qualitative Communication and proves the importance and necessity of considering them.A novel metric is proposed by taking these new factors into *** optimization problem is formulated to maximize the metric value of all retained chunks in the local storage of network nodes under the constraint of storage limit.A cache replacement scheme that obtains the optimal result in a recursive manner is proposed *** the help of the introduced intelligent cache replacement algorithm,the performance evaluations show remarkably reduced end-to-end latency compared to the existing schemes in various network scenarios.

关键词： Internet Qualitative communication New IP Chunk caching Random linear network coding End-to-end latency Cache replacement policy Degree of freedom Distance Packet size

Guest Editorial:Special issue on media convergence and intelligent technology in the metaverse

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CAAI Transactions on Intelligence Technology 2023年第2期8卷 285-287页

作者： Siwei Ma Maoguo Gong Guojun Qi Yun Tie Ivan Lee Bo Li Cong Jin Peking University BeijingChina Xidian University XianChina futurewei Technologies Santa ClaraCaliforniaUSA University of Central Florida OrlandoFloridaUSA Zhengzhou University ZhengzhouChina University of South Australia AdelaideSouth AustraliaAustralia Northwestern Polytechnical University Xi'anChina Communication University of China BeijingChina

The metaverse is a new type of Internet application and social form that integrates a variety of new technologies,including artificial intelligence,digital twins,block chain,cloud computing,virtual reality,robots,with brain-computer interfaces,and *** convergence technology is a systematic and comprehensive discipline that applies the theories and methods of modern science and technology to the development of media innovation,mainly including multimedia creation,production,communication,service,consumption,reproduction and so *** emergence of new technologies,such as deep learning,distributed computing,and extended reality has promoted the development of media integration in the metaverse,and these technologies are the key factors that promote the current transformation of the Internet to the metaverse.

关键词： multimedia computer artificial

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China Communications 2013年第6期10卷 I0002-I0003页

作者：张平 Charles E. Perkins the School of Information and Communication Engineering of BUPT information sciences of Chinese Science Bulletin the Special Government Allowance of State Council of China futurewei Mobile Communications and Computing Review the official publication of ACM SIGMOBILE IEEE Internet Computing magazine

As most terminals sold today offer wireless Internet connectivity as a primary feature for personal communication requirements, the "Mobile Internet" is rapidly flourishing in the information society. And, yet,

关键词：移动互联网 LNTERNET 互联网连接互联网安全个人通信信息社会持续增长工程师