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View from the Top
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 Toshio Kashiwagi, Senior Executive Vice President, Executive Officer (CIO/CDO), NTT COMWARE
Abstract
NTT COMWARE supports the systems that make up NTT’s telecommunications infrastructure and systems related to service operations from the software side. As a member of the NTT DOCOMO Group, it is also developing systems that will serve as the foundation for expanding the Group’s business. We interviewed Toshio Kashiwagi, senior executive vice president and executive officer (chief information officer/chief digital officer) of NTT COMWARE, which is committed to providing new value to society beyond the social infrastructure of telecommunications, about the company’s strengths as a group of software professionals and his attitude as a top executive.
Front-line Researchers
- Seishi Takamura, Visiting Senior Distinguished Researcher, NTT Computer and Data Science Laboratories
Abstract
The key to decoding a coded video in such a manner that the decoded video is as clear as possible is to remove noise contained in the original video, which also improves coding efficiency. Many researchers studying imaging have investigated this noise-removal problem; as a result, it is now said that random noise can be reduced to the limit at which only shot noise, a type of noise resulting from the random arrival of photons, remains. Although noise is generally an undesirable phenomenon, research that exploits it to achieve various effects is attracting attention. Seishi Takamura, visiting senior distinguished researcher at NTT Computer and Data Science Laboratories, developed a technology that uses fluctuations (noise) in the brightness of light to estimate brightness beyond the upper limit of digital values. We asked him about this technology and his stance as a researcher: “question everything,” “don’t be content,” “never say no,” and “let it lie.”
Rising Researchers
- Tatsurou Hiraki, Distinguished Researcher, NTT Device Technology Laboratories; NTT Device Innovation Center; NTT Nanophotonics Center, NTT Basic Research Laboratories
Abstract
The transmission capacity of electrical wiring has come to be viewed as a bottleneck in system processing performance in conjunction with increases in datacenter traffic and the development of high-performance large-scale integration (LSI) by transistor miniaturization. To solve this problem, there is a strong demand for photonics-electronics convergence technologies for applying optical transmission that can easily increase capacity to wiring positioned close to electronic circuits. In this article, we talk with NTT Distinguished Researcher Tatsurou Hiraki to learn about his research and development of “high-performance optical devices with integration of heterogeneous materials” as a rising researcher opening up a new future.
Feature Articles: Keynote Speeches at NTT R&D FORUM 2023 — IOWN ACCELERATION
- Akira Shimada, President and Chief Executive Officer, NTT Corporation
Abstract
This article presents the research and development (R&D) activities of NTT as it continues to innovate a sustainable future for people and the planet. It is based on the keynote speech given by Akira Shimada, president and chief executive officer of NTT Corporation, at the “NTT R&D FORUM 2023 — IOWN ACCELERATION” held from November 14th to 17th, 2023.
- Sachiko Oonishi, Executive Vice President, Head of Research and Development Market Strategy, NTT Corporation
Abstract
This article introduces NTT research and development (R&D) efforts from two perspectives: the “product-out” approach and the “market-in” approach. It is based on the keynote speech given by Sachiko Oonishi, executive vice president, head of Research and Development Market Strategy of NTT Corporation, at the “NTT R&D FORUM 2023 — IOWN ACCELERATION” held from November 14th to 17th, 2023.
- Shingo Kinoshita, Senior Vice President, Head of Research and Development Planning, NTT Corporation
Abstract
This article presents tsuzumi, NTT’s large language model (LLM), and the advancement of the Innovative Optical and Wireless Network (IOWN). It is based on the keynote speech given by Shingo Kinoshita, senior vice president, head of Research and Development Planning of NTT Corporation, at the “NTT R&D FORUM 2023 — IOWN ACCELERATION” held from November 14th to 17th, 2023.
Feature Articles: Efforts in the Environmental and Energy Sector to Create a Sustainable and Resilient Society
- Forefront Initiatives of NTT Space Environment and Energy Laboratories
Abstract
Having established unconventional research themes that had not been targeted at NTT laboratories, NTT Space Environment and Energy Laboratories is taking on various challenges to change the future of the global environment. By looking at the Earth from the perspective of space, we are aiming to regenerate the global environment and create an inclusive and sustainable society. In this article, the latest activities and future prospects of NTT Space Environment and Energy Laboratories, which has existed for three and a half years, are introduced.
- Zero Environmental Impact Technology to Achieve a Clean and Sustainable Society
Abstract
To contribute to achieving zero environmental impact, NTT Space Environment and Energy Laboratories is engaged in research and development of new forms of energy, efficient and resilient energy transport, and effective absorption and conversion of carbon dioxide (CO2). This article introduces virtual energy demand/supply control technology that makes the most effective use of renewable energy, next-generation energy supply technology that uses a direct current (DC) grid using reliable DC power supply, and oceanic CO2 reduction technology that uses the ocean food chain, which will all contribute to achieving carbon neutrality.
- Long-distance Laser-energy Transmission for Space Solar Power Systems and Their Application on Earth
Abstract
NTT Space Environment and Energy Laboratories is researching space solar power systems (SSPSs) to enable clean and sustainable next-generation energy. In this article, we explain what an SSPS is and introduce the issues and efforts regarding energy-transmission technology involving lasers, technology to convert sunlight into laser light, and technology to efficiently convert laser light into electric power.
- Forefront Research Initiatives on Environmental Adaptation to Enhance Societal Resilience to Environmental Changes
Abstract
NTT Space Environment and Energy Laboratories aims to create a resilient society that can respond flexibly to environmental changes by predicting patterns in the environment and human activities and developing technologies for environmental adaptation. In this article, we introduce the latest topics of research in cosmic-ray barrier technology and global environmental futures forecasting technology.
- Forecasting Technologies for Environmental and Socioeconomic Cycles for Attaining Inclusive Sustainability
Abstract
The Environmental and Socioeconomic Nexus Forecasting Technology Group has been in the process of developing a computer-based circulation system consisting of several models (e.g. natural environment, economic, and social). We aim to forecast changes in global-scale inclusive cycles for inclusive sustainability, in which the environment, economy, and society are interrelated and more stable. In this article, we describe our developments for forecasting environmental impact considering the interplay between the environment and economy and introduce a new index of affluence in the beyond GDP (gross domestic product) era.
Regular Articles
- Long-distance RDMA-acceleration Frameworks
Abstract
Most datacenter networks have adopted remote direct memory access (RDMA) as the basis of the transport network to their infrastructure because modern RDMA network interface cards can provide high-performance and energy-efficient capabilities to transfer data. Standard RDMA has been developed for short-distance transmission such as internal datacenters for achieving high-performance computing. We are currently developing the Innovative Optical and Wireless Network All-Photonics Network (IOWN APN) to achieve flexible, long-distance and low-latency optical-based networking for new-generation use cases such as a cyber-physical system. By taking advantage of high-performance and low-latency data transfer in RDMA over long-distance communication such as inter-datacenter networks based on the APN, application-level networking should be accelerated over the IOWN APN. We propose two long-distance RDMA-acceleration frameworks. We first present the RDMA over Open APN framework to increase throughput of RDMA beyond 100 km by using the appropriate queue-pair configuration. This is easy to use without additional components. We then present the RDMA wide area network (WAN) accelerator to build a new long-distance RDMA-transmission framework without resource limitation of SmartNIC in the RDMA over Open APN framework. We also evaluate the performance improvement of the RDMA WAN accelerator compared with standard RDMA. For example, for data transfer of 512-byte messages, the RDMA WAN accelerator has about 35 times performance improvement compared with standard RDMA.
Global Standardization Activities
- Activity Report of TTC Bridging the Standardization Gap Working Group
Abstract
The Bridging the Standardization Gap (BSG) Working Group of the Telecommunication Technology Committee (TTC) held a meeting in October 2023 in Tokyo and Kitakyushu, Japan. The meeting was attended by university professors and government officers from the Asia-Pacific region who work in the fields of information and communication technology (ICT) deployment and promotion of standardization. The topics of the meeting were introduction to the use of ICT in Japan (in fields such as agriculture, aquaculture, education, environment, medical care and disaster response), and discussion between the participants.
Information
External Awards/Papers Published in Technical Journals and Conference Proceedings
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