IEICE ESS Fundamentals Review
Online ISSN : 1882-0875
ISSN-L : 1882-0875
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Proposed by VLD (VLSI Design Technologies)
  • Naoki HAYASHI, Masaaki NAGAHARA
    2019 Volume 13 Issue 2 Pages 95-107
    Published: October 01, 2019
    Released: October 01, 2019
    JOURNALS FREE ACCESS

    Recent developments in computation and sensing technology have enabled us to access a variety of data sources. In signal processing and machine learning, sparse modeling has attracted much attention as a means of processing such high-dimensional data by harnessing the sparsity of a data structure. On the other hand, the importance of distributed sparse modeling over large-scale networks has also been increasing. In this paper, we discuss the theoretical background of the distributed sparse modeling from the viewpoint of cooperative control of multiagent systems. We also consider the application of distributed sparse modeling to environmental measurement with smart sensor networks.

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Proposed by CAS (Circuits and Systems)
Proposed by SSS (Safety)
Proposed by SIS (Smart Info-Media Systems)
  • Leonardo LANANTE Jr, Yuhei NAGAO, Hiroshi OCHI
    2019 Volume 13 Issue 2 Pages 124-132
    Published: October 01, 2019
    Released: October 01, 2019
    JOURNALS FREE ACCESS

    In this tutorial manuscript, we present the latest developments regarding one of the most successful wireless system standards, IEEE802.11 Wireless LAN. We focus our attention on the current 11ac amendments which brought us very high throughput transmission, and the soon-to-be finalized 11ax amendments, which will bring efficiency enhancements using orthogonal frequency division multiple access (OFDMA). The authors have had actively contributed and have proposals accepted (two for 11ac and one for 11ax). We then explore other trends in wireless LAN standardization such as the extremely high throughput amendment (11be) and wireless positioning amendment (11az).

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Proposed by ITS (Intelligent Transport Systems Technology)
Proposed by HWS (Hardware Security)
  • Daisuke FUJIMOTO
    2019 Volume 13 Issue 2 Pages 142-150
    Published: October 01, 2019
    Released: October 01, 2019
    JOURNALS FREE ACCESS

    The development and spread of autonomous equipment that acquires information from the surrounding environment, such as autonomous vehicles and drones, are in progress. In such equipment, sensors that acquire information from around the device are used, in which case the operation of the equipment relies on the information from the sensors. Therefore, if an attacker tampers with or interferes with the obtained by the sensors, there is a possiblity that the attacker can controls the equipment. It is necessary to consider the security of the data obtained from sensors in equipment that acquires external information for control. This paper gives an overview of security in the process of sensors acquiring information from the surrounding environment.

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