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<p>Efficient encoding methods play a vital role in communication systems to achieve high data transmission speeds while minimizing interference and distortion. This study examines three encoding techniques; duobinary, modified duobinary and carrier suppressed return to zero (CSRZ) exploring their principles, implementation complexities, and performance characteristics. Duobinary encoding reduces requirements by converting data into ternary symbols and leveraging redundancy. Modified duobinary encoding (MDRZ) enhances efficiency and noise tolerance through phase adjustments. CSRZ, a variation of the return to zero (RZ) format widens the pulse spectrum to mitigate dispersion effects and improve resistance against influences. Together, the techniques improve the communication networks in that they will eliminate problems associated with the transmission and modulation of the signals.The study presents an assessment of each technique’s advantages and limitations through analysis and simulations focusing on eye diagrams of bandwidth utilization and error rates, across different scenarios.</p>

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Comprehensive performance evaluation and comparative study of DRZ, MDRZ, AND CSRZ modulation techniques for optimized high-capacity optical communication systems

  • 期刊论文

  • 发表日期：

    2025年2月17日

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  • Padmini Mishra,
  • Bibhu Prasad,
  • Gopinath Palai,
  • Partha Sarkar,
  • Tusharkant Panda,
  • Kumar Prasannajit Sahu,
  • Priyanshu Kumar Patro

摘要

Efficient encoding methods play a vital role in communication systems to achieve high data transmission speeds while minimizing interference and distortion. This study examines three encoding techniques; duobinary, modified duobinary and carrier suppressed return to zero (CSRZ) exploring their principles, implementation complexities, and performance characteristics. Duobinary encoding reduces requirements by converting data into ternary symbols and leveraging redundancy. Modified duobinary encoding (MDRZ) enhances efficiency and noise tolerance through phase adjustments. CSRZ, a variation of the return to zero (RZ) format widens the pulse spectrum to mitigate dispersion effects and improve resistance against influences. Together, the techniques improve the communication networks in that they will eliminate problems associated with the transmission and modulation of the signals.The study presents an assessment of each technique’s advantages and limitations through analysis and simulations focusing on eye diagrams of bandwidth utilization and error rates, across different scenarios.