Abstract
A combined modulation scheme for optical label switching using DPSK/In-band-
SCM has been studied. We present simulations results for the performance of a
system with payload data in DPSK modulation at 10 Gb/s and the label
modulated on a subcarrier frequency SCM at bitrate of 155 Mb/s. Higher bit
rates for the label signal have also been considered and its impact on the
payload signal detection has been assessed. Moreover, by means of
simulations and mathematical development we show that the frequency for the
inband subcarrier that minimizes the crosstalk between the label and the
payload is a frequency equal to half the bit rate of the DPSK signal.
Furthermore, an optimum value for the modulation index of the subcarrier data
label taking into account the induced power penalty over the payload data
signal is given. The simulation results show that the proposed scheme is
suitable for an OLS network because of its robustness against non-linear
impairments in the transmission link and the simplicity of the independent
detection of label and payload.
| Original language | English |
|---|---|
| Title of host publication | ECOC |
| Publication date | 2005 |
| Publication status | Published - 2005 |
| Externally published | Yes |
| Event | 31st European Conference on Optical Communication - Glasgow, United Kingdom Duration: 25 Sept 2005 → 29 Sept 2005 Conference number: 31 http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=10509 |
Conference
| Conference | 31st European Conference on Optical Communication |
|---|---|
| Number | 31 |
| Country/Territory | United Kingdom |
| City | Glasgow |
| Period | 25/09/2005 → 29/09/2005 |
| Internet address |