| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Research Abstract |
It is required to achieve effective and dynamic spectrum sharing system by licensed wireless system (primary system) and new wireless system (secondary system) to tackle the spectrum scarcity problem due to rapid demand increment growing. In this study, we investigate cooperative spectrum measurement in time and space domains. In cooperative spectrum measurement, secondary terminal measure the spectrum in cooperation with the surrounding secondary terminals. This approach can achieve accurate measurement result in the both domains by simple measurement technique. Main purpose of this study is to establish spectrum sharing technique which can protect primary system properly.
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