VSAT Data Network

dc.contributor.author Abramson, Norman
dc.date.accessioned 2016-10-19T20:20:19Z
dc.date.available 2016-10-19T20:20:19Z
dc.date.issued 1990
dc.description.abstract <p>Two general methods have been used to provide random access packet communications in Very Small Aperture (VSAT) data networks – Spread Spectrum (or CDMA) and ALOHA. In this paper we review the use of satellite channels for such networks and discuss certain basics aspects of the architecture of VSAT data networks. Although Spread Spectrum and ALOHA have different origins and are sometimes represented as competing technologies, they can in fact be characterized as different ways of viewing the same low dimensional signals in a high dimensional signal space. After a brief introduction to the architecture of VSAT networks we show how a simple linear transformation of conventional ALOHA packets leads to signals identical in all respects to the most common form of Spread Spectrum signals. We call the result of this transformation Spread ALOHA.</p> <p>There are two practical consequences of this theoretical result. First, for the case of small earth stations it is not possible to find an access technique with a higher throughput than Spread ALOHA. Second, the use of different spreading sequences for different users in a packet network using Spread Spectrum is not necessary for user separation.</p> en_US
dc.format.extent 37 pages en_US
dc.identifier.uri http://hdl.handle.net/10125/42642
dc.language.iso en-US en_US
dc.publisher Honolulu, Hawaii: PRIISM, Pacific Research Institute for Information Systems and Management en_US
dc.subject.lcsh Data transmission systems en_US
dc.subject.lcsh Packet switching (Data transmission) en_US
dc.subject.lcsh ALOHA (Electronic computer system) en_US
dc.title VSAT Data Network en_US
dc.title.alternative PRIISM Working Paper No. 90-003 en_US
dc.type Report en_US
dc.type.dcmi Text en_US
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