Advanced Wireless Communication Technologies for Achieving High-Speed Mobile Radios

Norihiko MORINAGA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E78-B   No.8   pp.1089-1094
Publication Date: 1995/08/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on Technologies for High-Speed Mobile Communications)
Category: 
Keyword: 
mobile communications,  multi-level modulation,  advanced adaptive wireless systems,  multicarrier modulation,  CDMA systems,  optical-linked microcellular systems,  

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Summary: 
This paper discusses advanced wireless communication technologies for achieving future high-speed mobile radios. Mainly, five technical fields are considered, that is, multi-level modulation for transmitting high-capacity information signal, advanced adaptive wireless system flexibly changing modulation level, symbol rate and traffic according to fading conditions, adaptive multicarrier system transmitting multimedia signals by changing the number of carrier according to the capacity of the signals, new CDMA techniques for mapping different bit rate services onto the same allocated bandwidth at the same time, and optical-linked microcellular communication system with millimeter wave air interface.