22-8-2017: Bộ môn Kỹ thuật Vi xử lý: Kết quả nghiên cứu ban đầu về thiết kế điện tử tiết kiệm năng lượng cho các mạng không dây tiên tiến và Internet of Things

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(Department of Microprocessor Engineering: Preliminary Research Achievements of Energy Efficient Electronic Design for Emerging Wireless Networks and Internet of Things)

Starting in the beginnings of 2013, the research group of microelectronics led by Dr. Hoang Van Phuc, Deputy Head of Department of Microprocessor Engineering, Faculty of Radio-Electronic Engineering, has achieved encouraged research results.

Firstly, ultra-low power authenticated encryption IP cores for applications in emerging wireless networks and Internet of Things (IoT) systems were proposed and fabricated successfully. These IP cores were optimized in the hardware architecture and implemented with advanced 65nm SOTB CMOS technology supported by VLSI Laboratory (The University of Electro-Communications, Tokyo) and VDEC (The University of Tokyo, Japan). Especially, an efficient AES-GCM IP core was presented at the 60th IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2017), Tufts University, Boston, Massachusetts, USA, on August 6-9, 2017 (http://www.mwscas2017.org). With valuable questions and comments from leading researchers and experts, the research group will improve the paper, submit for a qualified ISI-covered journal and apply the proposed method for real applications.

Secondly, inspired by the requirement of ultra-high speed Analog-to-Digital Converters (ADCs) for next generation communication systems, the research group is also working on digital background calibration of channel mismatches for high speed time-interleaved ADCs in wideband RF direct receivers. As a preliminary research achievement, a new approach of stochastic computing for wide-band direct RF digital transceivers was proposed. Moreover, a research paper on the improved digital background calibration of channel mismatches for high speed time-interleaved ADCs was submitted for a qualified ISI-covered journal. Two above mentions research results are from national level projects funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED).

Thirdly, with the developing of Internet of Things (IoT) systems for smart monitoring applications, the research group is performing the design of an energy efficient smart delivery system based on IoT. The system allows managers and customers to monitor all real time parameters of the products during the delivery process using Massage Queuing Telemetry Transport (MQTT) protocol. In addition, the proposed system employs compact, low power consumption sensor nodes as well as optimal control algorithms so that the lifetimes of fixed node and mobile node are appropriately 286 days and 40 days, respectively. A research paper on this system was also submitted for an IEEE international conference. Moreover, the research group will further optimize the proposed system and apply this technology for other applications in smart environment monitoring, security and agriculture applications.

It is clear that NAFOSTED funded projects have provided a good opportunity for researchers to improve their research ability and approach new technologies and contribute high quality research papers to qualified international conferences and journals. The success of these projects will be a prerequisite for the development of further international funded projects and real products.

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