Experimental Analysis of LTE Signals in WDM-PON Managed by Embedded Pilot Tone

Dense deployment of many small cells is one promising solution to cope with mobile traffic increases. However, the deployment needs many optical fibers and network operators require efficient management for these cells. To overcome these issues, we have proposed a WDM-PON system managed by an electrically embedded pilot tone and confirmed its feasibility. In this letter, we compare management methods and clarify 128-kb/s pilot tone parameters that negligibly affect LTE signals transported by CPRI option seven experimentally. The results show that the modulation index as high as 20% and carrier frequency as high as 5 MHz are suitable under 1.0-dB optical power penalty.

[1]  P. Boffi,et al.  LTE-A mobile fronthaul exploiting pulse-width modulation in a RSOA-based WDM PON , 2016, 2016 Optical Fiber Communications Conference and Exhibition (OFC).

[2]  Frank J. Effenberger,et al.  Reflective Crosstalk Cancellation in Self-Seeded WDM PON for Mobile Fronthaul/Backhaul , 2016, Journal of Lightwave Technology.

[3]  Dirk Breuer,et al.  Fixed and mobile convergence: which role for optical networks? , 2015, IEEE/OSA Journal of Optical Communications and Networking.

[4]  Klaus Grobe,et al.  Physical layer aspects of NG-PON2 standards–Part 2: System design and technology feasibility [Invited] , 2016, IEEE/OSA Journal of Optical Communications and Networking.

[5]  Michael S. Berger,et al.  Cloud RAN for Mobile Networks—A Technology Overview , 2015, IEEE Communications Surveys & Tutorials.

[6]  Takayuki Kobayashi,et al.  WDM passive optical network managed with embedded pilot tone for mobile fronthaul , 2015, 2015 European Conference on Optical Communication (ECOC).