NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Signalling design and architecture for a proposed mobile satellite networkIn a frequency-division/demand-assigned multiple-access (FD/DAMA) architecture, each mobile subscriber must make a connection request to the Network Management Center before transmission for either open-end or closed-end services. Open-end services are for voice calls and long file transfer and are processed on a blocked-call-cleared basis. Closed-end services are for transmitting burst data and are processed on a first-come first-served basis. This paper presents the signalling design and architecture for non-voice services of an FD/DAMA mobile satellite network. The connection requests are made through the recently proposed multiple channel collision resolution scheme which provides a significantly higher throughput than the traditional slotted ALOHA scheme. For non-voice services, it is well known that retransmissions are necessary to ensure the delivery of a message in its entirety from the source to destination. Retransmission protocols for open-end and closed-end data transfer are investigated. The signal structure for the proposed network is derived from X-25 standards with appropriate modifications. The packet types and their usages are described in this paper.
Document ID
19900038566
Document Type
Conference Paper
Authors
Yan, T.-Y. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cheng, U. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wang, C. (JPL Pasadena, CA, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1990
Subject Category
COMMUNICATIONS AND RADAR
Report/Patent Number
AIAA PAPER 90-0796
Meeting Information
AIAA International Communication Satellite Systems Conference and Exhibit(Los Angeles, CA)
Distribution Limits
Public
Copyright
Other