All Stories

  1. Cascaded versus parallel architectures of two-stage optical crossbar switches with an extra set of inputs and outputs

    Article • IET Optoelectronics, March 2018, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  2. Strictly non-blocking three-quarter crossbar switch with simple switch control

    Article • Electronics Letters, December 2016, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  3. Design of optical multi/demultiplexers composed of bidirectional 2 × 2 switch elements for reducing component count

    Article • Electronics Letters, July 2015, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  4. Available bandwidth measurement technique using impulsive packet probing for monitoring end-to-end service quality on the Internet

    Article • October 2011, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hitoshi Obara

  5. Extended class of reduced crossbar switches

    Article • October 2009, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hitoshi Obara

  6. Reduced crossbar switch with minimum number of switching cells

    Article • Electronics Letters, January 2008, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  7. Bidirectional WDM Transmission Technique Utilizing Two Identical Sets of Wavelengths for Both Directions Over a Single Fiber

    Article • Journal of Lightwave Technology, January 2007, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hitoshi Obara

  8. Benefits of static WDM add/drop multiplexers in optical burst switching networks of ring configuration

    Article • IEICE Electronics Express, January 2007, Institute of Electronics, Information and Communications Engineers (IEICE)

    Dr Hitoshi Obara

  9. Bidirectional WDM transmission systems to enable using two identical sets of wavelengths over a single fibre

    Article • Electronics Letters, January 2006, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  10. Efficient parallel time-slot interchanger for high-performance SDH/SONET digital crossconnect systems

    Article • Electronics Letters, January 2001, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  11. Architectural performance analysis of linear-lightwave multifibre WDM networks in grid topology

    Article • Electronics Letters, January 2000, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  12. Hybrid routing concept for dense WDM ring networks

    Article • Electronics Letters, January 2000, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  13. Helical WDM ring network architecture

    Article • Electronics Letters, January 1999, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  14. Scalable two-stage WDM crossconnect architecture

    Article • Electronics Letters, January 1996, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  15. Virtually crosstalk-free wavelength routing network architecture

    Article • Electronics Letters, January 1996, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  16. A bit error and cell loss compensation method for atm transport systems

    Article • Electronics and Communications in Japan (Part I Communications), January 1993, Wiley

    Dr Hitoshi Obara

  17. Applying two-stage photonic crossconnects to time-division multiplexed switch networks

    Article • Electronics Letters, January 1993, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  18. Input and output queueing ATM switch architecture with spatial and temporal slot reservation control

    Article • Electronics Letters, January 1992, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  19. Improving the performance of input-queued ATM packet switches

    Article • January 1992, Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hitoshi Obara

  20. Star coupler based WDM switch employing tunable devices with reduced tunability range

    Article • Electronics Letters, January 1992, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  21. Parallel contention resolution control for input queueing ATM switches

    Article • Electronics Letters, January 1992, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  22. A distributively controlled homogeneous self-routing space switch network for large-capacity cross-connect systems

    Article • Electronics and Communications in Japan (Part I Communications), May 1991, Wiley

    Dr Hitoshi Obara

  23. Optimum architecture for input queuing ATM switches

    Article • Electronics Letters, January 1991, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  24. Atm cross-connect switch using folded banyan switching network with bypass links

    Article • Electronics and Communications in Japan (Part I Communications), November 1990, Wiley

    Dr Hitoshi Obara

  25. Design of a multistage self-routing switch with a distributed cell sequence control

    Article • Electronics and Communications in Japan (Part I Communications), October 1990, Wiley

    Dr Hitoshi Obara

  26. Optimum design of a pipelined time slot interchanger with time slot sequence integrity

    Article • Electronics and Communications in Japan (Part I Communications), September 1990, Wiley

    Dr Hitoshi Obara

  27. Self-routing fast packet switch with in-service modulator growth

    Article • Electronics Letters, January 1990, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  28. Self-routing space switch network comprising fast and uniform switch elements

    Article • Electronics Letters, January 1990, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  29. Self-routing planar network for guided-wave optical switching systems

    Article • Electronics Letters, January 1990, the Institution of Engineering and Technology (the IET)

    Dr Hitoshi Obara

  30. An efficient contention resolution algorithm for input queuing atm cross-connect switches

    Article • International Journal of Communication Systems, January 1989, Wiley

    Dr Hitoshi Obara

  31. High speed transport processor for broad-band burst transport system

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hitoshi Obara

  32. Multifiber wavelength-division multiplexed ring network architecture for Tera-bit/s throughput

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hitoshi Obara

  33. An ATM cross-connect system for broadband transport networks based on virtual path concept

    Article • Institute of Electrical & Electronics Engineers (IEEE)

    Dr Hitoshi Obara