146 resultados para Modulation formats
em Cambridge University Engineering Department Publications Database
Resumo:
This paper considers next-generation optical datacommunication standards and discusses the types of modulation formats that are relevant. The performance of several schemes is considered over multimode fibre. The trade-offs between the different modulation formats are considered in terms of link length, receiver sensitivity and complexity of implementation. © 2011 IEEE.
Resumo:
Optical datacommunication links are now required at rates beyond 40 Gb/s. Achieving robust low-cost transmission at these rates necessitates consideration of advanced modulation formats. This paper concentrates on schemes using multiple orthogonal pulses and outlines the advantages relative to alternatives such as multilevel modulation. Recent real-time experimental results at 56 Gb/s are described. © 2013 IEEE.
Resumo:
This paper reviews the development of system techniques using advanced modulation formats that have arisen in recent years for use in datacommunications. Simulations are provided to allow comparison of the emerging schemes. © 2011 Optical Society of America.
Resumo:
This paper reviews the development of system techniques using advanced modulation formats that have arisen in recent years for use in datacommunications. Simulations are provided to allow comparison of the emerging schemes. © OSA/OFC/NFOEC 2011.
Resumo:
This paper describes a curve-fitting approach for the design of capacity approaching coded modulation for orthogonal signal sets with non-coherent detection. In particular, bit-interleaved coded modulation with iterative decoding is considered. Decoder metrics are developed that do not require knowledge of the signal-to-noise ratio, yet still offer very good performance. © 2007 IEEE.
Gigabit/s modulation of twin-electrode high-brightness tapered laser with high modulation efficiency