Impairment-aware lightpath provisioning using inverse multiplexing in mixed-line-rate networks


Cukurtepe H., Yayimli A. , MUKHERJEE B.

OPTICAL SWITCHING AND NETWORKING, vol.11, pp.44-52, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 11
  • Publication Date: 2014
  • Doi Number: 10.1016/j.osn.2013.07.002
  • Title of Journal : OPTICAL SWITCHING AND NETWORKING
  • Page Numbers: pp.44-52

Abstract

In Mixed-Line-Rate (MLR) networks, different line rates on different wavelengths can coexist on the same fiber. MLR brings flexibility to handle diverse demands by allowing each lightpath to be established end-to-end with different line rates, if necessary. High line rates require advanced modulation techniques, such as DQPSK and DP-QPSK. On the other hand, signals being propagated over transparent paths are exposed to detrimental effects of physical-layer impairments (PLIs). Advanced modulation techniques are highly susceptible to PLI, especially to the cross-phase modulation (XPM) induced by intensity-modulated channels.