| Project/Area Number |
08555091
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
情報通信工学
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| Research Institution | KYOTO UNIVERSITY |
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Principal Investigator |
YOSHIDA Susumu Kyoto University, Graduate School of Eng., Professor, 工学研究科, 教授 (50026324)
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| Co-Investigator(Kenkyū-buntansha) |
MURATA Hidekazu Kyoto Univeristy, Graduate School of Eng., Research associate, 工学研究科, 助手 (60252475)
SUZUKI Hiroshi Tokyo Institute of Technology, International Cooperation Center for Science and, 理工学国際交流センター, 教授 (00282864)
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| Project Period (FY) |
1996 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥11,500,000 (Direct Cost: ¥11,500,000)
Fiscal Year 1997: ¥4,900,000 (Direct Cost: ¥4,900,000)
Fiscal Year 1996: ¥6,600,000 (Direct Cost: ¥6,600,000)
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| Keywords | mobile radio / fading channel / co-channel interference / interference canceller / hardware inplementation / PLD / laboratory experiment / トレリス符号化変調 / マイクロセル / 信号処理 |
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| Research Abstract |
In order to realize high speed transmission in digital mobile communications, the design trials of equalizers and co-channel interference cancellers are being investigated actively. Nonlinear co-channel interference canceller which uses path diversity has been proved to be an effective method against multipath propagation causing frequency selective fading in high speed transmission. The trellis-coded co-channel interference canceller (TCC) is well-known to yield a superior path diversity effect and co-channel interference cancelling capability, but the computational complexity increases rapidly when the multipath delay becomes large. In this research, by reducing the computational bits in the circuit, and simplifying the calculation complexity without sacrificing the performance, we successfully designed a small-scale, high speed adaptive TCC.This TCC is realized on a FPGA circuit. Its operation and processing speed have been confirmed to be consistent with the design goal.
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