A Centralized Control Microcell Radio System with Spectrum Delivery Switches

Hirofumi ICHIKAWA  Mamoru OGASAWARA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E76-B   No.9   pp.1115-1121
Publication Date: 1993/09/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Fiber-optic Microcelluler Radio Communication System and Their Technologies)
Category: System and Network Matters
Keyword: 
centralized control,  subcarrier multiplexing,  switch,  TDMA,  microcell,  dynamic channel assignment,  hand over,  

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Summary: 
This paper presents a delivery mechanism using a spectrum delivery switch (SDS) in a microcell system. In our fiber-optic microcell systems, modulators, demodulators and spectrum delivery switches are installed in a central station. A spectrum delivery switch controls provide flexible dynamic channel assignment and functions as a hand over algorithm. This control method employs a TDMA time slot switch and a MODEM connection switch. The relation between blocking probability and offered traffic are described and computer simulation results are shown. The results indicate an improvement in this blocking probability over conventional systems.