Differential space-time coding with large channel capacity in fast time-varying radio frequency environment

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420393
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: Ritsumeikan University
• Principal Investigator: KUBO Hiroshi 立命館大学, 理工学部, 教授 (40633243)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 通信方式 / 変復調 / 信号処理 / 符号化 / MIMO伝送方式

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.

Free Research Field

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