Abstract:
A wavelength converter that operates on an optical signal having single or multiplexed polarizations and which exhibits any modulation format.
Abstract:
A method for generating transparent pipes for heterogeneous service transmission via OFDMA-PON. In an exemplary embodiment, dedicated sub-channels, which are composed of one or more subcarriers—are used as a “transparent pipe” for delivery of arbitrary analog or digital signals for both circuit switched and packet switched systems.
Abstract:
A tunable asymmetric interleaver constructed from two symmetric interleavers in series, wherein either or both of the individual symmetric interleavers exhibit a wavelength shifting ability. Advantageously, tunable asymmetric interleavers so constructed provide continuous tunable interleaving ratios from 0:100 to 50:50 to 100:0 and provide attractive upgrade paths for existing and future DWDM networks and applications.
Abstract:
Disclosed herein are technologies for implementing a Flexible Fare Bus framework to reduce bus bunching Particularly, the Flexible Fare Bus framework focuses on fixing a demand of passengers from passenger's side by dynamically adjusting a pre-determined headway-threshold throughout a pre-defined bus route. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
Abstract:
A method for joint transmitter and receiver processing for computationally efficient equalization in polarization multiplexed (POLMUX) optical orthogonal frequency division multiplexed (OFDM) transmission with direct detection.
Abstract:
A modular wavelength cross connect node for use in a dense wavelength division multiplexing network exhibiting low cost and improved performance by employing a bidirectional wavelength selective switch in a main optical path and using optical circulators to share any common ports.
Abstract:
Disclosed is an effective and efficient compression system and technique for large amount of data. The data compression is particularly useful for compressing locational data. The compressed locational data is efficient and effective in tracing a moving object. By selecting appropriate input compression parameters, the accuracy and efficiency of the data compression can be tailored to the needs of the user.
Abstract:
A method and apparatus employing statistical physics energy minimization methods to signal constellation design. By using statistical physics concepts, an energy-efficient signal constellation design algorithm (EE-SCDA) is described. In the presence of amplified spontaneous emission (ASE) noise and channel impairments, we use EE-SCDA to determine a source distribution, and represent the signal constellation design as a center of mass problem. Furthermore a discrete-time implementation of D-dimensional transceiver as well as corresponding EE polarization-division multiplexed (PDM) system is described.