Multipath resolving with frequency dependence for wide-band wireless channel modeling

Robert Caiming Qiu, I. Tai Lu

Research output: Contribution to journalArticle

Abstract

Multiple ray paths are resolved using high-resolution digital signal processing algorithms. The Cramer-Rao (CR) bound is used as a benchmark where a combination of the singular value decomposition method and the eigen-matrix pencil method is proven to be most successful. The conventional complex channel model for wireless propagation is extended to include the frequency-dependent feature of rays which can be used to classify the ray arrivals and provide physical insight of the channel. A novel complex-time model is used to approximate the suggested model. This approach is important to various applications such as equalizer, RAKE receiver, etc., in wireless communication systems. Five key features (noise immunity, robustness, resolution, accuracy, and physical insight) of the proposed algorithm are studied using numerical examples.

Original languageEnglish (US)
Pages (from-to)273-285
Number of pages13
JournalIEEE Transactions on Vehicular Technology
Volume48
Issue number1
DOIs
StatePublished - Jan 1 1999

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics

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