Reference transmission schemes for phase noise immunity
| Autor: | P.A. Humblet, Murat Azizoglu |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Frequency-shift keying
Computer science Noise reduction Filter (signal processing) Semiconductor laser theory Laser linewidth Transmission (telecommunications) Phase noise Electronic engineering Electrical and Electronic Engineering Phase modulation Frequency modulation Linear phase Phase-shift keying |
| Zdroj: | IEEE Transactions on Communications. 43:1624-1635 |
| ISSN: | 0090-6778 |
| DOI: | 10.1109/26.380211 |
| Popis: | We consider an optical communication system where a reference signal is transmitted along with a phase modulated information carrying signal. This system has the potential of alleviating the effect of phase noise considerably. We perform a joint optimization of the receiver bandwidth and the powers of the two signals. The scheme achieves a performance that is close to that of ideal phase modulation systems when the ratio of bit rate to laser linewidth is large, and a performance that is identical to that of frequency modulation when the ratio is small. We also introduce a centered filter structure which achieves a far better performance than traditional filters due to increased the phase coherence. > |
| Databáze: | OpenAIRE |
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