Optical signal processing of interference and fading effects in high bit rate mobile communication

High bit rate and high speed mobile radio communications using microwaves and millimeter waves are very attractive for wireless mega and giga bits LAN and video transmissions. Radio interferences due to multi-propagation paths and multiple scattering by street buildings and natural structures of hills and trees are very important problems for high bit rate mobile radio communications. Real time high speed signal processing for delayed fading noises may be required. Optical signal processing using optical and radio interactions are most useful to accomplish real time high speed signal processing. Fundamental properties and applications of optical signal processors using optical active waveguide devices are shown for high bit-rate mobile communications.