| Paper Abstract and Keywords |
| Presentation |
2005-01-28 13:00
Automatic LUT Estimation for Baseband Predistortion
Hiroyuki Nakamura, Kazuji Watanabe, Takashi Maruyama, Masashi Nakatsugawa (NTT) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
It is important to estimate the I/O characteristic of the target amplifier to obtain better performance of the distortion compensation in baseband pre-distortion. Although estimation of AM-AM distortion compensation data with the amplification gain and the saturation power is relatively easy, it is difficult to estimate AM-PM distortion compensation data without considering its detailed circuit composition. This report proposes a new method that estimates AM-PM I/O characteristics by detecting out-band emission power. This method has features that determine AM-PM distortion compensation data to minimize out-band emission power. The numerical simulations that use 64QAM as a modulation method are carried out. It is clarified that proposed method can compensate AM-PM distortion excellently yet the AM-PM I/O characteristics are unknown. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
predistortion / amplifier / distortion / phase characteristics / out-band emission power / compensation / control / |
| Reference Info. |
IEICE Tech. Rep., vol. 104, no. 596, CS2004-207, pp. 143-148, Jan. 2005. |
| Paper # |
CS2004-207 |
| Date of Issue |
2005-01-21 (CS, RCS) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
RCS CS |
| Conference Date |
2005-01-26 - 2005-01-28 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
University of the Ryukyus |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Broadband Wireless Access Techniques, Wireless Access Technologies for IP Networks, Optical Wireless Systems, Wireless Communication Systems, etc. |
| Paper Information |
| Registration To |
CS |
| Conference Code |
2005-01-RCS-CS |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Automatic LUT Estimation for Baseband Predistortion |
| Sub Title (in English) |
|
| Keyword(1) |
predistortion |
| Keyword(2) |
amplifier |
| Keyword(3) |
distortion |
| Keyword(4) |
phase characteristics |
| Keyword(5) |
out-band emission power |
| Keyword(6) |
compensation |
| Keyword(7) |
control |
| Keyword(8) |
|
| 1st Author's Name |
Hiroyuki Nakamura |
| 1st Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
| 2nd Author's Name |
Kazuji Watanabe |
| 2nd Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
| 3rd Author's Name |
Takashi Maruyama |
| 3rd Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
| 4th Author's Name |
Masashi Nakatsugawa |
| 4th Author's Affiliation |
Nippon Telegraph and Telephone Corporation (NTT) |
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| Speaker |
Author-1 |
| Date Time |
2005-01-28 13:00:00 |
| Presentation Time |
20 minutes |
| Registration for |
CS |
| Paper # |
CS2004-207, RCS2004-314 |
| Volume (vol) |
vol.104 |
| Number (no) |
no.596(CS), no.599(RCS) |
| Page |
pp.143-148 |
| #Pages |
6 |
| Date of Issue |
2005-01-21 (CS, RCS) |