Abstract
After analysis of the L-level pulse-position-width modulation (PPWM) scheme's power spectrum, strong spectral lines in the PPWM sequence are found, which are not good for the propagation of the sequences. In this paper, the PPWM modulation scheme is modified, and a new modulation scheme, L-level pulse-width-position modulation scheme (PWPM) is proposed. This scheme lowers the peak value power, scatters the power spectrum, and at the same time has the same power efficiency, bandwidth efficiency and packet error rate as PPWM modulation scheme.
| Original language | English |
|---|---|
| Pages (from-to) | 460-464 |
| Number of pages | 5 |
| Journal | Zhongguo Jiguang/Chinese Journal of Lasers |
| Volume | 37 |
| Issue number | 2 |
| DOIs | |
| State | Published - Feb 2010 |
Keywords
- Bandwidth efficiency
- Optical communications
- Power efficiency
- Power spectrum
- Pulse-position-width modulation
- Pulse-width-position modulation
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