Search Results - "Sawahashi, M."

Downlink transmission of broadband OFCDM Systems-part I: hybrid detection by Yiqing Zhou, Jiangzhou Wang, Sawahashi, M.

“…The broadband orthogonal frequency and code division multiplexing (OFCDM) system with two-dimensional spreading (time and frequency domain spreading) is…”
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Adaptive control of surviving symbol replica candidates in QRM-MLD for OFDM MIMO multiplexing by Kawai, H., Higuchi, K., Maeda, N., Sawahashi, M.

“…This paper proposes adaptive control of the number of surviving symbol replica candidates, S m (m denotes the stage index), based on the minimum accumulated…”
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Downlink transmission of broadband OFCDM Systems-part II: effect of Doppler shift by Yiqing Zhou, Jiangzhou Wang, Sawahashi, M.

“…The orthogonal frequency and code division multiplexing (OFCDM) system with 2-D spreading (time- and frequency-domain spreading) is becoming a promising…”
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Field Experiments on MIMO Multiplexing with Peak Frequency Efficiency of 50 Bit/Second/Hz Using MLD Based Signal Detection for OFDM High-Speed Packet Access by Taoka, H., Dai, K., Higuchi, K., Sawahashi, M.

“…This paper presents indoor and field experimental results on extremely high-speed packet transmissions of 4.92 Gbps in a 100 -MHz channel bandwidth, i.e., the…”
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Experiments on real-time 1-Gb/s packet transmission using MLD-based signal detection in MIMO-OFDM broadband radio access by Higuchi, K., Kawai, H., Maeda, N., Taoka, H., Sawahashi, M.

“…This paper presents experimental results on real-time packet transmission of greater than 1 Gb/s using 4-by-4 multiple-input-multiple-output (MIMO)…”
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Multipath interference canceller for high-speed packet transmission with adaptive modulation and coding scheme in W-CDMA forward link by Higuchi, K., Fujiwara, A., Sawahashi, M.

“…This paper proposes a multipath interference canceller (MPIC) associated with orthogonal code-multiplexing that achieves much higher peak throughput than 2…”
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Iterative Signal Processing for Coded LSTF Architectures by Yuanliang Huang, Jiangzhou Wang, Higuchi, K., Sawahashi, M.

“…For high speed orthogonal frequency division multiplexing (OFDM) plus multiple-input multiple-output (MIMO) multiplexing, a new coded layered…”
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MCI cancellation for multicode wideband CDMA systems by Jun Chen, Jiangzhou Wang, Sawahashi, M.

“…Multicode code division multiple access (CDMA) is a new transmission scheme for flexible and high-speed data communications. The basic idea of multicode CDMA,…”
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CSI Reference Signal Multiplexing Using Carrier Frequency Swapping for FDD High-Order MIMO SDM by Sawahashi, M., Kawamura, T., Kakishima, Y.

“…This paper proposes channel state information - reference signal (CSI-RS) multiplexing employing carrier frequency swapping for frequency division duplex (FDD)…”
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Experiments on coherent adaptive antenna array diversity for wideband DS-CDMA mobile radio by Tanaka, S., Harada, A., Sawahashi, M., Adachi, F.

“…In wideband direct sequence code division multiple access (W-CDMA), employing an adaptive antenna array is a very promising technique to reduce severe multiple…”
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Performance analysis of MMSE detectors for high speed VSF-OFCDM by Bin Xia, Jiangzhou Wang, Sawahashi, M.

“…This letter investigates the effect of Doppler frequency shift on the performance of MMSE receivers for high speed variable spreading factor (VSF) orthogonal…”
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Downlink transmission of broadband OFCDM systems-part III: turbo-coded by Yiqing Zhou, Jiangzhou Wang, Sawahashi, M.

“…Orthogonal frequency and code-division multiplexing (OFCDM) systems have been introduced for high-speed data transmission in future wireless mobile…”
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Performance comparison of optimum and MMSE receivers with imperfect channel estimation for VSF-OFCDM systems by Bin Xia, Jiangzhou Wang, Sawahashi, M.

“…Performances of optimum and minimum mean square error (MMSE) receivers for variable spreading factor orthogonal frequency and code division multiplexing…”
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Experimental evaluation of combined effect of coherent RAKE combining and SIR-based fast transmit power control for reverse link of DS-CDMA mobile radio by Higuchi, K., Andoh, H., Okawa, K., Sawahashi, M., Adachi, F.

“…The combined effect of coherent RAKE combining using the weighted multislot averaging (WMSA) channel estimation filter and closed-loop fast transmit power…”
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Experiments on pilot symbol-assisted coherent multistage interference canceller for DS-CDMA mobile radio by Sawahashi, M., Higuchi, K., Andoh, H., Adachi, F.

“…A three-stage coherent multistage interference canceller (COMSIC) employing pilot symbol-assisted (PSA) channel estimation for replica generation of multiple…”
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Decision feedback differential detection of differentially encoded 16APSK signals by Adachi, F., Sawahashi, M.

“…Multiple-symbol differential detection (DD) with reference signal estimation based on the feedback of past detected symbols is presented for differentially…”
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Enhanced wireless access technologies and experiments for W-CDMA communications by Sawahashi, I., Higuchi, K., Tanaka, S., Adachi, F.

“…This article reviews enhanced wireless access technologies and experimental evaluations of the wideband DS-CDMA physical layer employing intercell asynchronous…”
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Guest Editorial Intelligent Services and Applications in Next-Generation Networks by Guizani, M., Gerla, M., Sawahashi, M., Schrodi, K.J.

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Guest Editorial 4G Wireless Systems by Lee, I., Sundberg, C.-E.W., Sawahashi, M., Glisic, S., Mclaughlin, S., Cimini, L.J.

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Guest Editorial Advances in Multicarrier CDMA by Wang, J., Giannakis, G.B., Lehnert, J.S., Sawahashi, M., Stark, W.E., Stuber, G.L., Bush

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