| Presentation | 2012-03-09 ANC-EPWM Transmitter Using Maximally Flat IIR Filter Koji IWAKI, Shinsuke YOKOZAWA, Yasushi YAMAO, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | OFDM is widely used for mobile communications because it has high spectral efficiency and robustness for multipath fading. However, it has high PAPR and vulnerable to nonlinear distortion because of its multicarrier structure. Thus, it is difficult for current power amplifiers to amplify the OFDM signal with high power efficiency and good linearity. To address these issues, envelope pulse-width modulation (EPWM) transmitter has been proposed and improved with the amplitude noise compensating (ANC) technique, suppressing the quantization noise from the transmitter. In this paper, maximally flat IIR filters are employed as the LPF for the band-limitation of quantization noise in ANC-EPWM transmitter. It is shown that the lower order IIR filters provide sufficient performance while achieving circuit size reduction and low power operation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OFDM / EPWM / Quantization Noise / Delta-Sigma Modulator / IIR Filter |
| Paper # | RCS2011-373 |
| Date of Issue |
| Conference Information | |
| Committee | RCS |
|---|---|
| Conference Date | 2012/2/29(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | ANC-EPWM Transmitter Using Maximally Flat IIR Filter |
| Sub Title (in English) | |
| Keyword(1) | OFDM |
| Keyword(2) | EPWM |
| Keyword(3) | Quantization Noise |
| Keyword(4) | Delta-Sigma Modulator |
| Keyword(5) | IIR Filter |
| 1st Author's Name | Koji IWAKI |
| 1st Author's Affiliation | Advanced Wireless Communication Research Center, the University of Electro-Communications() |
| 2nd Author's Name | Shinsuke YOKOZAWA |
| 2nd Author's Affiliation | Advanced Wireless Communication Research Center, the University of Electro-Communications |
| 3rd Author's Name | Yasushi YAMAO |
| 3rd Author's Affiliation | Advanced Wireless Communication Research Center, the University of Electro-Communications |
| Date | 2012-03-09 |
| Paper # | RCS2011-373 |
| Volume (vol) | vol.111 |
| Number (no) | 451 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |