| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
In order to achieve high frequency efficiency and large channel capacity, this research proposes differential space-time-frequency coding based on channel prediction for fast time-varying channels. The proposed scheme predicts time-varying channels and employs not only space-time domain signal processing but also frequency domain signal processing. Finally, computer simulation results confirm that the proposed schemes have the following excellent features compared with the conventional schemes: (1) the number of base stations for communications can be reduced to 1/10 thanks to the proposed schemes; (2) the proposed schemes can achieve 2-4 times better frequency efficiency.
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