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Adaptive mobile access protocol (AMAP) for the message service of a land mobile satellite experiment (MSAT-X)This paper describes a feasibility study of the adaptive mobile access protocol (AMAP) for MSATA-X, a proposed experimental mobile satellite communication network. The mobiles are dispersed over a wide geographical area and the channel data rate is limited due to the size and cost limitations of mobile antennas. AMAP is a reservation based multiple-access scheme. The available bandwidth is divided into subchannels, which are divided into reservation and message channels. The ALOHA multiple-access scheme is employed in the reservation channels, while the message channels are demand assigned. AMAP adaptively reallocates the reservation and message channels to optimize system performance. It has been shown that if messages are generated at a rate of one message per hour, AMAP can support approximately 2000 active users per 2400 bit/s channel with an average delay of 1.4 s.
Document ID
19840063168
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Li, V. O. K.
(Southern California, University Los Angeles, CA, United States)
Yan, T.-Y.
(California Institute of Technology, Jet Propulsion Laboratory, Communications Systems Research Section, Pasadena CA, United States)
Date Acquired
August 12, 2013
Publication Date
July 1, 1984
Publication Information
Publication: IEEE Journal on Selected Areas in Communications
Volume: SAC-2
ISSN: 0733-8716
Subject Category
Communications And Radar
Accession Number
84A45955
Distribution Limits
Public
Copyright
Other

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