Wireless Multiple Access Communications Using Collision Frequency Shift Keying

Abstract

This report investigates the design and performance of a novel wireless multiple access scheme based on collision frequency shift keying (CFSK). The CFSK system has been shown to have a greater capacity than a comparable CDMA system. However, the optimal multiuser receiver for the CFSK system has complexity that is exponential in the number of users, Several suboptimal reduced complexity receivers for the CFSK system are developed and their performance evaluated via computer simulation. These suboptimal receivers are shown via computer simulation to have performance close to that of the optimal receiver. These results indicate that CFSK is a promising system for ad hoc communications networks that cannot use a highly coordinated system.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2004
Accession Number
ADA431943

Entities

People

  • Lance C. Pérez
  • Xia Chen

Organizations

  • University of Nebraska–Lincoln

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Algorithms
  • Code Division Multiple Access
  • Coding
  • Collisions
  • Communication Systems
  • Computational Complexity
  • Computers
  • Decoding
  • Frequency
  • Frequency Division Multiple Access
  • Frequency Shift
  • Modulation
  • Multiple Access
  • Random Variables
  • Simulations
  • Time Division Multiple Access
  • Wireless Communications

Fields of Study

  • Computer science
  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Radio communications and signal processing.