| Presentation | 2001/4/12 A study on narrowband linear modulation scheme with quasi-constant envelope Shinsuke Uchida, Hideichi Sasaoka, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have proposed a new digital modulation scheme, narrowband linear modulation scheme with quasi-constant envelope. This scheme cannot only obtain sufficient frequency efficiency but also apply to the system with nonlinear amplifier. The principle of the proposing scheme is that lowering pulse amplitude of data symbol sequence and using full roll-off filter with narrower impulse response for offset-QPSK. As a result, envelope fluctuation of the proposing scheme is restricted within 11%, and the spectrum after nonlinear amplifier is as same as that of GMSK for BT of 0.3. In addition, in both cases of coherent detection and MLSE, the BER performance of the proposing scheme is deteriorated from theory by approximately 1dB in E_b/N_0 at BER of 10^<-4>. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | frequency efficiency / nonlinear amplifier / quasi-constant envelope / MLSE |
| Paper # | RCS2001-11,CQ2001-11 |
| Date of Issue |
| Conference Information | |
| Committee | CQ |
|---|---|
| Conference Date | 2001/4/12(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 | Communication Quality (CQ) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study on narrowband linear modulation scheme with quasi-constant envelope |
| Sub Title (in English) | |
| Keyword(1) | frequency efficiency |
| Keyword(2) | nonlinear amplifier |
| Keyword(3) | quasi-constant envelope |
| Keyword(4) | MLSE |
| 1st Author's Name | Shinsuke Uchida |
| 1st Author's Affiliation | Doshisha University() |
| 2nd Author's Name | Hideichi Sasaoka |
| 2nd Author's Affiliation | Doshisha University |
| Date | 2001/4/12 |
| Paper # | RCS2001-11,CQ2001-11 |
| Volume (vol) | vol.101 |
| Number (no) | 12 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |