An Overview and Comparison of Demand Assignment Multiple Access (DAMA) Concepts for Satellite Communications Networks

by Phillip M. Feldman


Download eBook for Free

FormatFile SizeNotes
PDF file 5.7 MB

Use Adobe Acrobat Reader version 10 or higher for the best experience.


Purchase Print Copy

 FormatList Price Price
Add to Cart Paperback129 pages $13.00 $10.40 20% Web Discount

Provides a broad survey of Demand Assignment Multiple Access (DAMA), a loosely-defined class of multiple-access techniques for allocation of satellite resources. DAMA schemes can be divided into two main classes: "Pure" DAMA, which involves circuit-switched resource allocation, is efficient for voice and for large file transfers, but inefficient for text messages and most short data transmissions. "Hybrid" DAMA schemes, which allocate resources using circuit switching in combination with packet switching or other techniques, address the limitations of pure DAMA in several different ways. The report explains the workings of these protocols and discusses implementation issues, including alternative control locales (fully centralized, fully distributed, and hierarchical). It examines vulnerabilites of these protocols (including unintentional interference, jamming of links, and destruction of critical nodes) and presents alternative mitigation strategies for these vulnerabilities, including some new design approaches. Performance results are included for many of the protocols, drawing on the published literature wherever possible and including some new performance results as well.

Research conducted by

This report is part of the RAND Corporation monograph report series. The monograph/report was a product of the RAND Corporation from 1993 to 2003. RAND monograph/reports presented major research findings that addressed the challenges facing the public and private sectors. They included executive summaries, technical documentation, and synthesis pieces.

Permission is given to duplicate this electronic document for personal use only, as long as it is unaltered and complete. Copies may not be duplicated for commercial purposes. Unauthorized posting of RAND PDFs to a non-RAND Web site is prohibited. RAND PDFs are protected under copyright law. For information on reprint and linking permissions, please visit the RAND Permissions page.

The RAND Corporation is a nonprofit institution that helps improve policy and decisionmaking through research and analysis. RAND's publications do not necessarily reflect the opinions of its research clients and sponsors.