NDLI: Performance under shadowing environment of a hybrid system for mobile robots using cellular and ad-hoc modes

Content Provider	IEEE Xplore Digital Library
Author	Adachi, T. Nakagawa, M.
Copyright Year	1999
Description	Author affiliation: Dept. of Inf. & Comput. Sci., Keio Univ., Kanagawa, Japan (Adachi, T.)
Abstract	A hybrid system for operational mobile robots using two modes, the cellular mode and the direct mode, or the ad-hoc mode, named as "cellular ad-hoc united communication system" has been considered previously by the authors. A mobile terminal (MT) selects the mode which has better communication condition with its received power and changes the modes while communicating. This system has been confirmed to have effective channel usage and reduction in battery consumption. Another advantage which can be expected in this system is validity in shadowing environment. This is because when there is a pair behind walls from base stations (BSs), condition of direct communication (ad-hoc mode) might be better than that through BSs (cellular mode). Thus, here the performance of the hybrid system is examined under shadowing environment with the use of a ray-tracing method. From the results, the validity of the hybrid system toward shadow fading was confirmed.
Starting Page	1202
Ending Page	1206
File Size	346758
Page Count	5
File Format	PDF
ISBN	0780354354
ISSN	10903038
DOI	10.1109/VETECF.1999.798627
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-09-19
Publisher Place	The Netherlands
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Shadow mapping Mobile robots Mobile communication Batteries Fading Computer science Ray tracing Humans Spread spectrum communication Broadcasting
Content Type	Text
Resource Type	Article

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