EHF Satellite Communications-on-the-Move Blockage Channel Modeling

Abstract

In the next-generation Transformational Satellite Communications System, one essential element is to provide satellite communication to on-the-move terminals, which suffer from intermittent channels due to blockages by objects in their environments. Presented is our approach for modeling these blockage channels for different environments, in order to allow accurate prediction of system behavior via numerical simulation or symbolic analysis. In particular, we focus on the scenario of link-layer ARQ (automatic repeat request) and the simple two-state Markov model is amenable to symbolic analysis, but is less accurate, while a more complex mixture model leads to better predictions, but can be studied only via numerical simulation. We also introduce a new memory-decay curve concept for the characterization of channel memory and the estimation of model parameters.

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Document Details

Document Type
Technical Report
Publication Date
Nov 02, 2004
Accession Number
ADA428030

Entities

People

  • Huan Yao

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Channel Models
  • Complex Mixtures
  • Computational Science
  • Environment
  • Experimental Data
  • Markov Chains
  • Markov Models
  • Models
  • Networks
  • Probability
  • Probability Density Functions
  • Random Variables
  • Satellite Communications
  • Simulations
  • Statistical Analysis
  • Vehicles

Fields of Study

  • Engineering

Readers

  • Computer Networking
  • Mathematical Modeling and Probability Theory.
  • Radio communications and signal processing.

Technology Areas

  • Space