Investigation of Hamming, Reed-Solomon, and Turbo Forward Error Correcting Codes

Abstract

As data rate requirements for communications applications continue to increase and power requirements continue to fall, it becomes increasingly difficult to provide error-free communications over a noisy channel. Shannon's Limit provides the maximum error-free data rate achievable over an additive white Gaussian noise (AWGN) channel for a given signal to noise ratio (SNR). Forward error correcting (FEC) codes provide algorithms for encoding and decoding data bits, and help achieve data rates closer to Shannon's Limit. Three FEC codes are presented and their improvements in data rate are compared to tradeoffs in complexity and decoding lag. Different types of modulation are used to make comparisons in the performance of each FEC code.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2009
Accession Number
ADA505116

Entities

People

  • Gregory Mitchell

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Additives (Chemicals)
  • Algorithms
  • Coders
  • Coding
  • Computer Programming
  • Data Rate
  • Data Transmission
  • Decoding
  • Deep Space
  • Diagrams
  • Digital Communications
  • Equations
  • Gaussian Noise
  • Modulation
  • Noise
  • Symbols
  • Wireless Communications

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.