| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
High speed wireless communication is achieved by increasing the number of transmit signal streams transmitted simultaneously. Actually, it is almost impossible to get the number of the streams more than that of the receive antennas due to prohibitive computational road of the receiver. This research project proposed generalized rotation matrices that make the complexity of the receiver flexible. In fact, the complexity can be reduced to about 1/100 of that of the original receiver by the proposed technique. The proposed technique allows the number of the simultaneously transmit signals to be three times or four times as many as that with conventional receivers. We considered iterative detection combined with the proposed technique to improve the transmission performance. We have proposed a technique to reduce the computational complexity in MIMO physical layer network coding where the number of received signals at the relay is more than that of the receive antennas.
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