A Space-Division Multiple-Access Protocol for Spot-Beam Antenna and Satellite-Switched Communication Network

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)126-132
Journal / PublicationIEEE Journal on Selected Areas in Communications
Issue number1
Publication statusPublished - Jan 1983
Externally publishedYes


This paper identifies the characteristics of a point-to-point demand-assignment satellite-switched spot-beam antenna communication network for integrated data voice traffic. The described protocol is known as space-division multiple-access (SDMA) which uses an on-board central traffic controller, a fixed-assignment time-division multiple-access (TDMA) protocol for reservations, and a rigid frame structure with separate data and voice subframes. Message and circuit switching are utilized for data and voice traffic, respectively. Synchronization is maintained by a looped-back reservation burst. A detailed delay analysis of data and voice traffic is presented for an arbitrary compound arrival process. A new method for the calculation of the data reservation and scheduling delays is derived. A comparison of the performance of the SDMA protocol to other protocols is shown. This paper demonstrates the feasibility and illustrates the design of the SDMA protocol. Copyright © 1983 by The Institute of Electrical and Electronics Engineers, Inc.