Title :
Indoor radio communications for factories of the future
Author :
Rappaport, Theodore S.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
5/1/1989 12:00:00 AM
Abstract :
The need for reliable, real-time communication for automated factories is discussed. The ability of narrowband digital radio systems to meet that need is examined. The major problems encountered in multipath propagation, resulted from multiple reflections of the transmitted signal from the building structure and surrounding inventory. Radio wave propagation experiments at 1300 MHz, which were conducted by the author in five operational factories, are described. Other studies of multipath propagation are discussed, and techniques for overcoming it are considered. Research on multiple-access networking is summarized.<>
Keywords :
digital communication systems; factory automation; multi-access systems; radio systems; radiocommunication; radiowave propagation; 1300 MHz; UHF; automated factories; building structure; factories of the future; multipath propagation; multiple reflections; multiple-access networking; narrowband digital radio systems; radio wave propagation; real-time communication; transmitted signal; Coaxial cables; Computer aided manufacturing; Frequency modulation; Frequency shift keying; Indoor radio communication; Manufacturing automation; Manufacturing industries; Mobile robots; Production facilities; Protocols;
Journal_Title :
Communications Magazine, IEEE
