Masayuki Nakada

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— In this paper, we propose a joint transmit/receive frequency domain equalization (FDE) based on minimum mean square error (MMSE) criterion for multi-input multi-output (MIMO) analog network coding (ANC) in single-carrier (SC) bi-directional relay communications. In the proposed scheme, the relay station (RS) equipped with multiple antennas carries out(More)
— In this paper, we propose a power allocation method for the direct/cooperative amplify-and-forward (AF) relay switched SC-FDMA using spectrum division/adaptive subcarrier allocation (SDASA). The cooperative relaying is used only when it can achieve higher channel capacity than the direct communication. In the proposed power allocation method, transmit(More)
SUMMARY In this paper, a direct/cooperative relay switched single carrier-frequency division multiple access (SC-FDMA) using amplify-and-forward (AF) protocol and spectrum division/adaptive subcarrier allocation (SDASA) is proposed. Using SDASA, the transmit SC signal spectrum is divided into sub-blocks, to each of which a different set of subcarriers(More)
— Relay using analog network coding (ANC) can achieve the same maximum throughput as the direct transmission while reducing the required transmit power. In this paper, we propose an adaptive power allocation scheme for bi-directional single-carrier (SC) ANC. The proposed scheme adaptively allocates the transmit power so as to make the instantaneous(More)
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