Soft Decision Decoding of Convolutional Codes in Direct-Sequence Spread-Spectrum Mobile Wireless Communications

Abstract

New uses of convolutional codes have been developed for nonuniform phase-shift-key (PSK) signaling. Soft-decision decoding of convolutional codes has been investigated for applications of nonuniform PSK modulation to multimedia signaling and multicast transmission in direct-sequence spread-spectrum wireless communication networks. Research has also been conducted on new processing techniques in PSK receivers to provide soft information for decoding of convolutional and turbo codes. Methods were also investigated for the development of soft-decision information in rake receivers for communication over fading multipath channels. Research was initiated on soft-decision decoding for turbo product codes.

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Document Details

Document Type
Technical Report
Publication Date
Nov 29, 2001
Accession Number
ADA398490

Entities

People

  • Michael B. Pursley

Organizations

  • Clemson University

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Code Division Multiple Access
  • Coding
  • Communication Channels
  • Communication Networks
  • Decoding
  • Engineering
  • Military Communications
  • Modulation
  • Multimedia
  • Multiple Access
  • Networks
  • Nonuniform
  • Phase Shift
  • Sequences
  • Spread Spectrum
  • Wireless Communications
  • Wireless Networks

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.