Adaptive Data Broadcasting Using Air-Cache

Abstract

In the Data AirWaves Project at University of Maryland, we are integrating Direct Broadcast Satellite (DBS) systems with terrestrial networks to provide a hybrid and effective communication substrate lying between data resources and remote/mobile user applications. Smooth integration of these two media balances the need for rapid data dissemination to very large numbers of clients and on?demand interactive data services. This paper describes the air-cache, a method for effective data broadcasting and an algorithm which rapidly adapts the content of the cache based on the "misses" which result in explicit (on-demand) data requests. Simulation results show that the hypothesis of adapting based only on the misses performs quite reasonably and has very little deviation from a system that has complete information - both hits and misses.

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Document Details

Document Type
Technical Report
Publication Date
Sep 23, 1996
Accession Number
ADA438525

Entities

People

  • John Baras
  • Konstantinos Stathatos
  • Nick Roussopoulos

Organizations

  • University of Maryland

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Access Time
  • Artificial Satellites
  • Bandwidth
  • Broadcasting
  • Communication Networks
  • Data Management
  • Databases
  • Department Of Defense
  • Energy Consumption
  • Hot Spots
  • Information Systems
  • Maryland
  • Mobile Computing
  • Networks
  • Simulations
  • Throughput
  • Universities

Fields of Study

  • Computer science

Readers

  • Computer Networking
  • Parallel and Distributed Computing.
  • Theoretical Analysis.

Technology Areas

  • Space