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The Unpredictable Certainty White Papers (1997) / Chapter Skim
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Spread ALOHA Wireless Multiple Access: The Low-Cost Way for Ubiquitous, Tetherless Access to the Information Infrastructure
Pages 178-184

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From page 178...
... Envision a robust nationwide packet radio data network in place with millions of users having tetherIess, broadband user communications devices allowing easy, low-cost automatic interface into the public and private networks of the national infonnation infrastructure-anywhere, anytime. A user with a portable PC, a personal digital assistant (PDA)
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From page 179...
... ALOHA Networks expects that the PC/PDA market Will be only the base for the nomadic, fatherless computing network market. New applications using a PCMCIA card (beyond PC and PDA applications)
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From page 180...
... Spread ALOHA is an advanced wireless multiple access technology that can provide the capabilities required for digital networks with large numbers of remote terminals. Spread ALOHA combines the proven simplicity and operational flexibility of conventional narrowband ALOHA wireless multiple access wig the high bandwidth and high throughput of spread spectrum.
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From page 181...
... Spread ALOHA combines He proven simplicity and operational flexibility of a conventional ALOHA multiple-access channel wad the high ban~vv~dth and high throughput of a spread spectrum channel. ANALYSIS AND FORECAST General Spread ALOHA wail make it possible to build a nationwide broadband packet-radio data network allowing easy, low-cost, automatic Interface into the public and private networks of the national information infrastn~cture.
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From page 182...
... ALOHA Networks estimates that Spread ALOHA multiple access can substantially increase network capacity as well as individual "burst" transmission rates without significant added cost over other alternatives. The existing and planned data networks tend to be constrained to an operating rate of about 20 to 50 kilobits per second.
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From page 183...
... Assuring large quantities of devices, ALOHA Networks estimates the cost of the Spread ALOHA chip set or chip for remote user communications cards in a m~crocellular system to be substantially below $100 in the 1998 time frame, with the normal "Moore's Law" cost reductions beyond 1998. User software in the terminal device would employ "standard" user software such as the General Magic or other user operating software products.
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From page 184...
... 1994. "Multiple Access in Wireless Digital Networks," invited paper, Proceedings of the IEEE, September.
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Key Terms

  • mobile data
  • multiple access
  • aloha networks
  • conventional aloha
  • aloha technology

  • aloha architecture
  • ram mobile
  • data access
  • wireless multiple
  • aloha wireless

  • spread spectrum
  • data network
  • computing network
  • aloha channel
  • cellular infrastructure

  • wireless data
  • communications devices
  • analog cellular
  • hub station
  • aloha hub

  • pcs data
  • remote user
  • private networks
  • data market
  • data rate

  • national information
  • information infrastructure
  • allowing easy
  • pcmcia card
  • terminal communications


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