Paper Abstract and Keywords |
Presentation |
2013-02-28 16:05
[Invited Talk]
R&D of technology for efficient frequency use through coordinated control and terminals compatible with heterogeneous radio systems Homare Murakami, Kentaro Ishizu, Goh Miyamoto, Ha Nguyen Tran, Stanislav Filin, Ryuhei Funada, Hiroshi Harada (NICT), Yoshiaki Katsumata, Kiyoshi Ogawa, Minoru Nakamura, Kenichi Iijima, Dai Nishino, Keima Shimoiizaka, Kazuya Ootani (NTT PC Communications) RCS2012-334 SR2012-96 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
The goal of the R&D project is to realize cognitive radio networking environments which consist from heterogeneous-type and spectrum-sharing-type cognitive radio technologies. Though the heterogeneous-type cognitive radio technology improves spectrum usage efficiency by controlling the traffic balance among existing RANs, the spectrum-sharing-type does by using the white space frequency bands. We researched the technologies to improve efficiency of spectrum utilization on multiple-RANs and multiple-operators environments. We have achieved that the spectrum usage improves 1.5 times as efficient without changing spectrum assignment, and we also developed a quick sensing technology which conforms to the quality defined by overseas standards/draft standards, e.g. US FCC and Singapore IDA. Furthermore, we have promoted standardization and commercialization of our R&D results: our proposed managing framework becomes the essential part of IEEE 1900.4, 1900.4a and 1900.6 standards, and cognitive radio base stations are now available as a part of solution in business. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
cognitive radio / heterogeneous type / spectrum-sharing type / cognitive base station / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 112, no. 444, SR2012-96, pp. 73-80, Feb. 2013. |
Paper # |
SR2012-96 |
Date of Issue |
2013-02-20 (RCS, SR) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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RCS2012-334 SR2012-96 |
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