Name
Abstract | ||
|---|---|---|
Pre-emphasis filters are used to pre-compensate for the transmitter frequency response of coherent systems to mitigate receiver noise enhancement. This is particularly essential for low-cost, low-power coherent transceivers due to having an extremely bandlimited transmitter. However, the pre-emphasis filter also increases the signal peak-to-average power ratio (PAPR), thus posing a higher effective number of bits (ENoB) requirement for the arbitrary waveform generator (AWG). In this paper, we first numerically study the PAPR impact of partial pre-emphasis filters. We show that with partial pre-emphasis, an ENoB reduction from 5 to 4.5 bits is attainable at the same signal-to-noise ratio (SNR) out of the AWG. Next, we experimentally investigate the overall performance penalty of partial pre-emphasis in a 50 Gbaud 16QAM coherent system. A manageable Q factor penalty of around 0.5 dB is found for both single-polarization and dual-polarization systems with a 0.8 dB PAPR reduction. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.3390/fi11120256 | FUTURE INTERNET |
Keywords | Field | DocType |
optical communications,pluggable transceivers,pre-emphasis,coherent communications | Transmitter,Transceiver,Quadrature amplitude modulation,Frequency response,Bandlimiting,Computer science,Computer network,Electronic engineering,Effective number of bits,Emphasis (telecommunications),Arbitrary waveform generator | Journal |
Volume | Issue | Citations |
11 | 12 | 0 |
PageRank | References | Authors |
0.34 | 0 | 7 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ahmad Abdo | 1 | 1 | 1.39 |
| Xueyang Li | 2 | 0 | 0.34 |
| Md Samiul Alam | 3 | 0 | 1.69 |
| Mahdi Parvizi | 4 | 0 | 0.34 |
| Naim Ben-Hamida | 5 | 5 | 4.64 |
| Claude D'Amours | 6 | 0 | 2.70 |
| David V. Plant | 7 | 30 | 17.63 |