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Time Domain Estimation of Mobile Radio Channels for OFDM Transmission

  • Silesian University of Technology

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Citations (Scopus)

Abstract

Time domain synchronous OFDM (TDS-OFDM) is a kind of orthogonal multicarrier transmission, where a guard period between consecutive parts of useful information is filled with a pseudorandom noise that acts as a training sequence. This sequence can be used both for synchronization and channel estimation. The paper presents a new estimation procedure for mobile channel recovery, that is based on the time domain training sequence and utilizes the compressive sensing approach. The proposed solution does not require any additional help from any deliberately deployed training information in the frequency domain (pilot tones). The method is experimentally explored in a simulated doubly selective sparse transmission environment. The quality metrics, obtained for an uncoded OFDM transmission system with implementation of the proposed estimation method, are compared to the ones that were obtained in case of ideal channel state information as well as the timefrequency training method.

Original languageEnglish
Title of host publicationComputer Networks - 21st International Conference, CN 2014, Proceedings
PublisherSpringer Verlag
Pages167-176
Number of pages10
ISBN (Print)9783319079400
DOIs
Publication statusPublished - 2014

Publication series

NameCommunications in Computer and Information Science
Volume431
ISSN (Print)1865-0929

Keywords

  • OFDM modulation
  • compressive sensing
  • mobile channels
  • time domain estimation

ASJC Scopus subject areas

  • General Computer Science
  • General Mathematics

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