کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6888390 697328 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the performance of joint iterative detection and decoding in coherent optical channels with laser frequency fluctuations
ترجمه فارسی عنوان
در عملکرد تشخیص و تکرار مشترک در کانال های نوری منسجم با نوسانات فرکانس لیزر
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
چکیده انگلیسی
This work investigates the performance of the JIDD algorithm in multi-gigabit optical coherent receivers. We present simulation results of bit error rate (BER) for non-differential polarization division multiplexing (PDM)-16QAM modulation in a 200 Gb/s coherent optical system that includes an LDPC code with 20% overhead and net coding gain of 11.3 dB at BER = 10−15. Our study shows that JIDD with a pilot rate ⩽5% compensates for both laser phase noise and laser frequency fluctuation. Furthermore, since JIDD is used with non-differential modulation formats, we find that gains in excess of 1 dB can be achieved over existing solutions based on an explicit carrier phase estimator with differential modulation. The impact of the fiber nonlinearities in dense wavelength division multiplexing (DWDM) systems is also investigated. Our results demonstrate that JIDD is an excellent candidate for application in next generation high-speed optical coherent receivers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Fiber Technology - Volume 24, August 2015, Pages 5-14
نویسندگان
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