Nomadic Computing Environment Employing Wired and Wireless Networks

Toshiaki TANAKA  Masahiro MORIKURA  Hitoshi TAKANASHI  

IEICE TRANSACTIONS on Communications   Vol.E81-B    No.8    pp.1565-1573
Publication Date: 1998/08/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section INVITED PAPER (Special Issue on Multimedia Communications in Heterogeneous Network Environments)
LAN,  wireless LAN,  mobile computing,  hand off,  security,  MAC,  

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This paper presents an integrated network configuration of wired and wireless access systems for nomadic computing and discusses the virtual LAN on a wireless access system. Furthermore, different types of ad hoc networks are summarized to delineate nomadic computing styles. In terms of user mobility, the integrated network provides a seamless connection environment, so a user can move between wireless and wired networks without dropping data communication sessions. This function is critical for nomadic computing users. By defining the integrated network and employing a virtual LAN, a nomadic computing environment can be realized. This paper reviews the key issues to realize integrated networks. They are mobile management including mobile IP, virtual IP and Logical Office, a high performance MAC, and security control.