Modulated Coding for Digital Communication Systems Under ISI/Multipath Fading and Jamming

Abstract

This report describes the main research achievements during the time period cited above on the research project in the area of telecommunications. The main achievements include the systematic study of modulated codes that are convolutional codes defined on real/complex field over intersymbol interference, multipath, jamming channels. We obtained the joint maximum-likelihood decoding, and the MMSE-DFE decoding algorithms. We proved the existence of the coding gain compared to the uncoded AWGN channel. We also obtained space-time modulated codes for multiple transmit and multiple receive antenna systems. A new precoded OFDM system was also obtained which is robust to spectral-nulls.

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Document Details

Document Type
Technical Report
Publication Date
Mar 14, 2000
Accession Number
ADA375853

Entities

People

  • Xiang-gen Xia

Organizations

  • University of Delaware

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Algorithms
  • Angle Of Arrival
  • Coding
  • Communication Systems
  • Communications Techniques
  • Decoding
  • Digital Communications
  • Frequency
  • Information Science
  • Information Theory
  • Intersymbol Interference
  • Modulation
  • Moving Targets
  • New Jersey
  • Orthogonal Frequency Division Multiplexing
  • Signal Processing
  • Synthetic Aperture Radar

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.
  • Theoretical Analysis.

Technology Areas

  • Space