Analysis and Coding for Multiple-Access Channels

Abstract

The most important communication channels were investigated in the situation of multiple users. These models do not assume any central intelligence there is no coordination between the transmitters, so fit to the usual conditions of an ad-hoc or sensor network. Better bounds on the minimum code word length and efficient code constructions were achieved for the scenarios, when many independent, partially active transmitters are communicating over a shared medium. These techniques can be applied in the usual code division multiple access (CDMA) situations where time and frequency resources can be utilized in one continuous domain throughout the entire communication system. Neither CDMA, nor the recently used random access protocols for conflict resolution utilize the full power of the channels. Efforts were made to obtain better bandwidth throughputs between the transmitters, to fit to the usual conditions of an ad-hoc network.

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Document Details

Document Type
Technical Report
Publication Date
Mar 06, 2006
Accession Number
ADA454472

Entities

People

  • Miklos Ruszinko

Organizations

  • Hungarian Academy of Sciences

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Ad Hoc Networks
  • Bandwidth
  • Code Division Multiple Access
  • Coding
  • Communication Channels
  • Communication Systems
  • Communications Techniques
  • Detectors
  • Frequency
  • Frequency Agility
  • Frequency Bands
  • Information Theory
  • Mesh Networks
  • Multiple Access
  • Networks
  • Sensor Networks
  • Transmitters

Readers

  • Computer Networking
  • Radio communications and signal processing.
  • Statistical inference.