1. Naoaki Yamanaka, Hidetoshi Takeshita, Kazumasa Tokuhashi, Takehiro Sato, ``Next Generation Green Metro/Access Network Architecture using Time-slot-based Optical Aggregation Network for Multi-service Access ,'' Cyber Journals: Multidisciplinary Journals in Science and Technology, Vol. JSAT Vol. 3, No. 2, pp. 7-12, February 2013.
2. Ko Kikuta, Satoru Okaoto, Eiji Oki, Naoaki Yamanaka, ``A Parallelized OSPF Weight Setting Scheme based on a Genetic Algorithm for Multi-Core CPUs,'' Cyber Journals: Multidisciplinary Journals in Science and Technlogy, Journal of Selected Areas in Telecommunications, Vol. 3, No. Issue 9, No.3, pp. 1-8, September 2013.
3. Toshiaki Suzuki, Toshiaki Tarui, Tomohiro Baba, Akihiko Takase, Akiko Yamada,Sho Shimizu,Toshio Munemiya,HIdetoshi Takeshita, Hikaru Horie, Naoaki Yamanaka, ``サービス品質保証型の大規模省電力クラウドシステム−3都県に跨る大規模システムによる実証実験−,'' Journal of Digital Practices, Vol. 4, No. 4, pp. 342-351, October 2013.
4. Daisuke Matsubara, Hitoshi Yabusaki, Satoru Okamoto, Naoaki Yamanaka, Tatsuro Takahashi, ``Proposal of Data-centric Network for Mobile and Dynamic Machine-to-Machine Communication,'' IEICE Transactions on Communications, Vol. E96-B, No. 11, pp. 2795-2806, November 2013.