Abstract

Design and performance of radio channel control method for AWA prototype

This paper appears in:
Personal, Indoor and Mobile Radio Communications, 1998. The Ninth IEEE International Symposium onDate of Conference: 8-11 Sep 1998
Author(s): Sato, H. 
NTT Wireless Syst. Labs., Japan 
Terashima, T. ;  Okada, T. ;  Manabe, T. ;  Matsue, H. 
Volume: 2 
Page(s): 660 - 664 vol.2 
ProductType: Conference Publications
ABSTRACT
The ATM wireless access (AWA) prototype was developed in order to realize a broadband wireless access service with connections to the wired ATMnetwork. Radio channel control techniques are used to control the AWA prototype and perform radio resource management. The radio channel control is made up of two main functions. One is the functionof radio resource control, which includes channel establishment, allocation, and connection control. The other involves quality control, which includes channel switching and quality observation. This paper proposesa radio channel control method in which channel capacity is allocated according to the transmission rate requested by the user and ATM connections are controlled independently of channel assignment. This paper alsoproposes a method to ensure appropriate communication quality. Results of testing the proposed radio channel control on the prototype are provided

A new train control system by radio

This paperappears in:
Vehicular Technology Conference, 1989, IEEE 39th
Date of Conference: 1-3 May 1989
Author(s): Hasegawa, Y. 
Safety & Telecommun. Lab., Railway Tech. Res. Inst., Tokyo 
Hayashi,H. ;  Ikeda, M. ;  Inage, H. 
Page(s): 851 - 859 vol.2 
Product Type: Conference Publications

ABSTRACT
The basic configuration and the primary estimation of safety and performance of a novelradio-based train control system are described. Three types of architectures for the radio transmission system are selected, depending on factors such as estimated quality and capacity, traffic...