Journal

1. Kohei Hirata, Daichi Amagata, Takahiro Hara, "Cardinality Estimation in Inner Product Space," IEEE Open Journal of the Computer Society (IEEE OJ-CS), vol.3, pp.208-216, October 2022.
2. Shinya Kondo, Akimitsu Kanzaki, Takahiro Hara, Shojiro Nishio, "Integration of Traffic Reduction and Sleep Scheduling for Energy-Efficient Data Gathering in Wireless Sensor Networks," International Journal of Computer Systems Science and Engineering , vol.28, no.4, July 2013.
3. Yazhi Liu, Jianwei Niu, Jian Ma, Lei Shu, Takahiro Hara, Wendong Wang, "The Insights of Message Delivery Delay in VANETs with a Bidirectional Traffic Model," Journal of Network and Computer Applications , vol.36, no.5, pp.1287-1294, January 2012.
4. Guangjie Han, Jinfang Jiang, Lei Shu, Mohsen Guizani, Shojiro Nishio, "A Two-Step Secure Localization for Wireless Sensor Networks," The Computer Journal , vol.56, no.10, pp.1154-1166, January 2012.
5. Lei Shu, Manfred Hauswirth, "Cross Layer Optimization for Data Gathering in Wireless Multimedia Sensor Networks within Expected Network Lifetime," Journal of Universal Computer Science , vol.16, no.10, pp.1343-1367, May 2010.