Coding for Spread-Spectrum Communications Networks.

Abstract

The multiple-access capability of a frequency-hop packet radio network is investigated from a coding point of view. The achievable region of code rate and channel traffic and the normalized throughput are considered as performance measures. We model the communication system from the modulator input to the demodulator output as an I-user interference channel, and evaluate the asymptotic performance fo various coding schemes for channels with perfect side information, no side information, and imperfect side information. The coding schemes being considered are Reed-Solomon codes, concatenated codes, and parallel decoding schemes. We derive the optimal code rate and the optimal channel traffic at which the normalized throughput is maximized, and from these optimum values the asymptotic maximum normalized throughput is derived. The results are then compared with channel capacities.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1987
Accession Number
ADA185667

Entities

People

  • Bal G. Kim

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Channel Capacity
  • Code Division Multiple Access
  • Coding
  • Communication Channels
  • Communication Systems
  • Conductive Polymers
  • Decoding
  • Frequency
  • Information Science
  • Information Theory
  • Modulation
  • Modulators
  • Multiple Access
  • Network Protocols
  • Network Science
  • Random Variables
  • Signal Processing

Fields of Study

  • Computer science

Readers

  • Radio communications and signal processing.
  • Statistical inference.