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Feature Articles: Keynote Speeches at NTT R&D Forum 2017-
 Hiroo Unoura, President and Chief Executive Officer, NTT
Overview
This article introduces NTT Group initiatives to promote the B2B2X (business-to-business-to-X) business model. The content of this article is based on a lecture presented by Hiroo Unoura, NTT President and Chief Executive Officer, at NTT R&D Forum 2017 held in February 2017.
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Hiromichi Shinohara, Senior Executive Vice President and Head of Research and Development Strategy Department, NTT
Overview
This article introduces NTT’s research and development (R&D) activities for creating new value through collaboration with various partners to promote the B2B2X (business-to-business-to-X) business model under the NTT Group’s medium-term management strategy, Towards the Next Stage 2.0. It is based on a lecture presented by Hiromichi Shinohara, NTT Senior Executive Vice President and Head of the Research and Development Strategy Department, at NTT R&D Forum 2017, which was held in February 2017.
Feature Articles: NTT Tsukuba Forum 2016 Workshop Lectures-
 Research and Development Activities toward Smart and Flexible Future Network: NetroSphere Concept
Abstract
The NTT laboratories announced the NetroSphere concept in March 2015 with the aim of creating future networks that support the Hikari Collaboration Model (business model to wholesale fiber access). This article introduces our recent efforts concerning NetroSphere and explains the importance of creating future smart and flexible networks based on the NetroSphere concept in order to accommodate the digitization of various industries and the rapid growth of multiple Internet of Things services. These Feature Articles are based on lectures given during workshops at the Tsukuba Forum 2016 held on October 26, 2016.
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Flexible Access System Architecture: FASA
Abstract
The NTT laboratories announced FASA: Flexible Access System Architecture, the new architecture based on the NetroSphere concept, in February 2016. This article provides an overview of FASA, which is designed to achieve flexibility in future access systems, and introduces its application to optical access systems accommodating mobile base stations.
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Research and Development of Innovative Operation Technology for Access Network Infrastructure
Abstract
The Optical Access Network Project underway at NTT Access Network Service Systems Laboratories involves research and development on access network technology. This article is based on a lecture given at the NTT Tsukuba Forum held in October 2016; it introduces the research and development designed to innovate access network operation and the areas of development planned for the future.
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Wireless Access Technologies to Enable a Variety of Services
Abstract
In the wireless access project at NTT Access Network Service Systems Laboratories, we are researching and developing wireless access technologies centered around wireless local area network (LAN) technology. This article describes the issues that have arisen due to the growing use of wireless LANs and introduces our research and development efforts aimed at solving these issues and expanding the use cases of wireless LANs.
Regular Articles-
Low Latency Dynamic Bandwidth Allocation Method with High Bandwidth Efficiency for TDM-PON
Abstract
This article describes a low latency dynamic bandwidth allocation (DBA) method with high bandwidth efficiency that is intended for use in campus area networks and mobile fronthaul based on TDM-PON (time division multiplexing passive optical network). These network systems require low latency of under 100 μs and high bandwidth efficiency. Our method involves only three steps for allocation and employs an adaptive DBA cycle depending on the traffic load. The DBA cycle length, which is proportional to the latency, can be minimized because the simple allocation steps are appropriate for hardware implementation. Our DBA method automatically optimizes the cycle length to reduce the latency and improve bandwidth efficiency. We implemented it on a 10-gigabit Ethernet passive optical network (10G-EPON) media access control system-on-a-chip and evaluated the allocation results and the latency on the 10G-EPON system. Our DBA achieved a minimum latency of 60 μs with priority control and high bandwidth efficiency, depending on traffic.
Global Standardization Activities-
Report on ITU Telecom World 2016 and ITU Kaleidoscope 2016
Abstract
ITU Telecom World 2016 and the eighth ITU Kaleidoscope academic conference, both of which are organized by the International Telecommunication Union (ITU), took place November 14−17, 2016, at the IMPACT Exhibition and Convention Center, Bangkok, Thailand. With the demise of His Majesty King Bhumibol Adulyadej of Thailand in October, ITU Telecom World was formally opened in a solemn atmosphere by Her Royal Highness Princess Maha Chakri Sirindhorn, second daughter of the late king. This article gives an overview of the exhibits and discussions at the ITU Telecom World and the accompanying Kaleidoscope academic conference.
Practical Field Information about Telecommunication Technologies-
Case Study of Bolt Corrosion in Remote Subscriber Module-Feeder Point
Abstract
This article describes causes of and countermeasures to corrosion in bolts used for securing RSBM-F (remote subscriber module-feeder point) equipment. This is the thirty-ninth article in a series on telecommunication technologies. This contribution is from the Materials Engineering Group, Technical Assistance and Support Center, Maintenance and Service Operations Department, Network Business Headquarters, NTT EAST.
Information-
Event Report: Tsukuba Forum 2016
Abstract
Tsukuba Forum 2016 was held on October 25 and 26. The theme of the forum was “Future Social Infrastructure: Co-creating a Better Life with Valued Partners ~ Innovative Access Network to Actualize the NetroSphere Concept.” This article gives a brief overview of the speeches and exhibits presented at the forum.
Short Reports
External Awards/Papers Published in Technical Journals and Conference Proceedings
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