Title :
SONET framing recognition using modulation domain analysis
Author :
Yang, Weiguo ; Sinsky, Jeffrey H.
Author_Institution :
Photonic Networks Res. Dept., Lucent Technol. Bell Labs., Holmdel, NJ, USA
Abstract :
We have experimentally studied the synchronous optical network (SONET) data traffic with pseudorandom bit sequence (2/sup 23/-1) as the data payload in the time domain, spectral domain, and modulation domain. The spectral structure of the SONET framing sequence is fundamentally different from that of the random bit sequence of the same length. Based on this observation, the SONET framing pulses are experimentally extracted by a modulation domain analyzer for an OC-48 data traffic. The histogram data shows that the error probability for false framing is 1.7/spl times/10/sup -5/, The scheme can be scaled to higher data rates for performance monitoring applications in all-optical regeneration systems.
Keywords :
SONET; error statistics; monitoring; optical repeaters; telecommunication traffic; OC-48 data traffic; SONET framing pulses; SONET framing recognition; SONET framing sequence; all-optical regeneration systems; data payload; error probability; false framing; histogram data; modulation domain; modulation domain analysis; modulation domain analyzer; performance monitoring applications; pseudorandom bit sequence; random bit sequence; spectral domain; synchronous optical network data traffic; Clocks; Data mining; Monitoring; Payloads; Pulse modulation; Radio frequency; SONET; Signal analysis; Spectral analysis; Telecommunication traffic;
Journal_Title :
Photonics Technology Letters, IEEE
