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Your search keyword '"Dai, Huiming"' showing total 14 results
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14 results on '"Dai, Huiming"'

4. Research on multichannel transmission of security information in MAC layer based on zoom and forward in VANETs

Author

Zhang Xin, Yang Da-cheng, and Dai Huiming

Subjects
Service (systems architecture), Computer Networks and Communications, Computer science, business.industry, Network packet, Reliability (computer networking), ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, Time division multiple access, 020206 networking & telecommunications, Access control, Data_CODINGANDINFORMATIONTHEORY, 02 engineering and technology, Transmission (telecommunications), 0202 electrical engineering, electronic engineering, information engineering, 020201 artificial intelligence & image processing, Zoom, business, Software, Communication channel, Computer network
Abstract

Vehicle Ad-Hoc networks (VANETs) needs to provide time-delay sensitive communication service for security application and non-security application, which makes medium access control (MAC) not only meet the time delay and reliability of security information, but also ensure the service channel utilization of non-security information, and also proposes challenges for the design of MAC. Considering about the requirements of security application and non-security application of VANETs for information transmission, MAC improvement algorithm I-TDMA-MAC based on TDMA has been proposed. I-TDMA-MAC considers about both the time delay and reliability of security information transmission and the utilization of service channel. I-TDMA-MAC allocates two sub-slots for reach vehicle, improves security information transmission performance; at the same time, re-allocates idle slot and improves utilization of service channel. Simulation results have shown that compared with TCMAC, the transmission rate of data packet of I-TDMA-MAC has been increased to 99% and the utilization of service channel has been increased to 90%.

Published
2018
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9. Visible-Light-Induced Difunctionalization of 3-Butenoic Acid with Bromodifluoromethyl Heteroarylsulfones

Author

Liu, Qianqian, Wang, Xiaoping, Gu, Xuefeng, Dai, Huiming, Huang, Zhibin, and Zhao, Yingsheng

Abstract

Herein, we report a visible-light-induced iridium-promoted direct bifunctionalization of 3-butenoic acid with bromodifluoromethyl heteroarylsulfones. This methodology enables the concurrent introduction of difluoromethyl heteroarylsulfone and bromine groups into 3-butenoic acid under mild reaction conditions. Various α-substituted 3-butenoic acids and bromodifluoromethyl heteroarylsulfones were found to be compatible, yielding the corresponding products in moderate to good yields. This method opens a new route for the synthesis of fluorocarboxylic acid derivatives.

Published
2024
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13. Enhanced efficiency of generating induced pluripotent stem (iPS) cells from human somatic cells by a combination of six transcription factors

Author

Liao, Jing, primary, Wu, Zhao, additional, Wang, Ying, additional, Cheng, Lu, additional, Cui, Chun, additional, Gao, Yuan, additional, Chen, Taotao, additional, Rao, Lingjun, additional, Chen, Siye, additional, Jia, Nannan, additional, Dai, Huiming, additional, Xin, Shunmei, additional, Kang, Jiuhong, additional, Pei, Gang, additional, and Xiao, Lei, additional

Published
2008
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