| Presentation | 1996/6/21 A Study on Envelope Control system for QPSK Shigeo OHUE, Kazuhiro MIYAUCHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | For bandpass linear modulation channels, a new envelope control scheme is proposed. It adds compensation pulse to information signal corresponding to input data pattern. We present simple examples of this scheme for QPSK system. Frequency/power trade-off characteristic of this scheme is calculated, and compared to conventional QPSK. In these examples, compensation pulse has same waveform as information pulse, thus both ISI and ICI don't occur. It can improve normalized SNR without degradation of frequency efficiency. Normalized SNR is improved from 0.2 to 0.7 dB when the rolloff factor is from 0.1 to 0.4, and about 0.5 dB when the rolloff factor is from 0.5 to 1.0. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | envelope control / frequency / power trade-off characteristic / linear modulation / QPSK / intersymbol interference / interchannel interference |
| Paper # | SST96-15,SAT96-29,RCS96-39 |
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| Conference Information | |
| Committee | SST |
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| Conference Date | 1996/6/21(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 | Spread Spectrum Technology (SST) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Envelope Control system for QPSK |
| Sub Title (in English) | |
| Keyword(1) | envelope control |
| Keyword(2) | frequency |
| Keyword(3) | power trade-off characteristic |
| Keyword(4) | linear modulation |
| Keyword(5) | QPSK |
| Keyword(6) | intersymbol interference |
| Keyword(7) | interchannel interference |
| 1st Author's Name | Shigeo OHUE |
| 1st Author's Affiliation | Electrical Engineering Department, Science University of Tokyo() |
| 2nd Author's Name | Kazuhiro MIYAUCHI |
| 2nd Author's Affiliation | Electrical Engineering Department, Science University of Tokyo |
| Date | 1996/6/21 |
| Paper # | SST96-15,SAT96-29,RCS96-39 |
| Volume (vol) | vol.96 |
| Number (no) | 100 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |