2010 Fiscal Year Final Research Report
High-Efficiency Transmission of Linear Modulation Signals with a Saturated Amplifier
| Project/Area Number |
19360170
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
YAMAO Yasushi The University of Electro-Communications, 先端ワイヤレスコミュニケーションセンター, 教授 (10436735)
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| Project Period (FY) |
2007 – 2010
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| Keywords | 移動体通信 / 省エネルギー / 高周波増幅器 |
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| Research Abstract |
In order to break the limit of transmitter power efficiency for linear modulation signals used in broadband mobile communications, a novel transmitter architecture called EPWM ( Envelope Pulse Width Modulation ) transmitter has been proposed. The transmitter can be operated in the saturation region of a power amplifier nd gain maximum power efficiency. However, reducing quantization noise from EPWM rocess is a critical issue. After analyzing characteristics of the noise in detail, an ANC (Amplitude Noise Compensation) method has been proposed and validated to be effective in reducing the noise.
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Research Products
(17 results)
